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blasting (63) 63
heating (63) 63
lighting (63) 63
mechanical engineering (63) 63
weapons (63) 63
ranges (47) 47
ventilating (47) 47
fluid heaters, e.g. water or air heaters, having heatgenerating means, in general (40) 40
human necessities (17) 17
performing operations (17) 17
transporting (17) 17
physical or chemical processes or apparatus in general (14) 14
separation (14) 14
coffee mills (13) 13
domestic articles or appliances (13) 13
furniture (13) 13
spice mills (13) 13
suction cleaners in general (13) 13
sanitary equipment not otherwise provided for (12) 12
toilet accessories (12) 12
combustion apparatus (11) 11
combustion processes (11) 11
general tagging of cross-sectional technologies spanning over several sections of the ipc (9) 9
general tagging of new technological developments (9) 9
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (9) 9
domestic hot-water supply systems (8) 8
domestic- or space-heating systems, e.g. central heatingsystems (8) 8
elements or components therefor (8) 8
regulating or controlling combustion (8) 8
artificial respiration (7) 7
bathing devices for special therapeutic or hygienic purposesor specific parts of the body (7) 7
engine plants in general (7) 7
gas-flow silencers or exhaust apparatus for internalcombustion engines (7) 7
gas-flow silencers or exhaust apparatus for machines orengines in general (7) 7
hygiene (7) 7
machines or engines in general (7) 7
massage (7) 7
medical or veterinary science (7) 7
physical therapy apparatus, e.g. devices for locating orstimulating reflex points in the body (7) 7
steam engines (7) 7
technologies or applications for mitigation or adaptation againstclimate change (6) 6
climate change mitigation technologies related totransportation (5) 5
combustion engines (5) 5
controlling combustion engines (5) 5
hot-gas or combustion-product engine plants (5) 5
engineering elements and units (4) 4
general measures for producing and maintaining effectivefunctioning of machines or installations (4) 4
thermal insulation in general (4) 4
air supply (3) 3
alloys (3) 3
bearings (3) 3
casting (3) 3
changing the physical structure of non-ferrous metals andnon-ferrous alloys (3) 3
chemistry (3) 3
draught-inducing (3) 3
elements or crankshaft mechanisms (3) 3
ferrous or non-ferrous alloys (3) 3
flexible shafts (3) 3
layered products (3) 3
layered products, i.e. products built-up of strata of flat ornon-flat, e.g. cellular or honeycomb, form (3) 3
making metallic powder (3) 3
manufacture of articles from metallic powder (3) 3
metallurgy (3) 3
powder metallurgy (3) 3
rotary bodies other than gearing elements (3) 3
shafts (3) 3
supplying non-combustible liquid or gas (3) 3
technical subjects covered by former us classification (3) 3
technical subjects covered by former uspc (3) 3
technical subjects covered by former uspc cross-reference artcollections [xracs] and digests (3) 3
treatment of alloys or non-ferrous metals (3) 3
working metallic powder (3) 3
domestic washing or cleaning (2) 2
measuring (2) 2
physics (2) 2
testing (2) 2
actuating-floats (1) 1
air-conditioning, air-humidification, ventilation, use of aircurrents for screening (1) 1
burners (1) 1
china-japan relations (1) 1
cleaning of internal or external surfaces of heat-exchange orheat-transfer conduits, e.g. water tubes or boilers (1) 1
climate change mitigation technologies related to buildings,e.g. housing, house appliances or related end-userapplications (1) 1
cocks (1) 1
conflicts (1) 1
devices for venting or aerating (1) 1
east asian security (1) 1
economic growth (1) 1
economic reform (1) 1
economic surveys (1) 1
economic trends (1) 1
economics (1) 1
extinguishing-devices (1) 1
government cabinets (1) 1
heat exchange in general (1) 1
ignition (1) 1
international relations (1) 1
investigating or analysing materials by determining theirchemical or physical properties (1) 1
measuring volume, volume flow, mass flow or liquidlevel (1) 1
metering by volume (1) 1
monuments (1) 1
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10/2001, 7
PROBLEM TO BE SOLVED: To provide a water heater having a remote controller in which a code number can be visually confirmed easily by displaying it while... 
MECHANICAL ENGINEERING | WEAPONS | BLASTING | RANGES | HEATING | FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL | VENTILATING | LIGHTING
Patent
05/2001, 7
PROBLEM TO BE SOLVED: To provide a hot water preserving unit which can independently detect opening of a cock without being interlocked with a heat source... 
MECHANICAL ENGINEERING | WEAPONS | BLASTING | DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS | RANGES | DOMESTIC HOT-WATER SUPPLY SYSTEMS | HEATING | VENTILATING | LIGHTING | ELEMENTS OR COMPONENTS THEREFOR
Patent
01/2000, 7
PROBLEM TO BE SOLVED: To prevent bacteria such as Legionella or the like or miscellaneous germs from propagating in a portion for staying of hot water such as... 
MECHANICAL ENGINEERING | WEAPONS | BLASTING | DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS | RANGES | DOMESTIC HOT-WATER SUPPLY SYSTEMS | HEATING | VENTILATING | LIGHTING | ELEMENTS OR COMPONENTS THEREFOR
Patent
01/2000, 7
PROBLEM TO BE SOLVED: To prevent hot water discharge quantity from a hot water discharge tap from decreasing at the time of occurrence of hot water discharge... 
MECHANICAL ENGINEERING | WEAPONS | BLASTING | DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS | RANGES | DOMESTIC HOT-WATER SUPPLY SYSTEMS | HEATING | VENTILATING | LIGHTING | ELEMENTS OR COMPONENTS THEREFOR
Patent
05/2003, 7
PROBLEM TO BE SOLVED: To provide a combustor and a water film formation device for the same, capable of surely avoiding the danger of abnormal ignition just... 
MECHANICAL ENGINEERING | WEAPONS | BLASTING | RANGES | COMBUSTION PROCESSES | HEATING | BURNERS | FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL | VENTILATING | LIGHTING | COMBUSTION APPARATUS
Patent
06/1994, 5
PURPOSE:To make it possible to make a quick decision as to a circulation failure by connecting a branch circuit branched from a bath boiler to a force... 
MECHANICAL ENGINEERING | WEAPONS | BLASTING | RANGES | HEATING | FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL | VENTILATING | LIGHTING
Patent
04/2001, 7
PROBLEM TO BE SOLVED: To provide a hot-water supply apparatus having hot-water supply stop function, in which the heed for reset operations is eliminated and... 
MECHANICAL ENGINEERING | WEAPONS | BLASTING | RANGES | HEATING | FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL | VENTILATING | LIGHTING
Patent
01/2000, 7
PROBLEM TO BE SOLVED: To avoid growth of miscellaneous germs and bacteria such as Legionella or the like within an instantaneous water heater unit by... 
MECHANICAL ENGINEERING | WEAPONS | BLASTING | DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS | RANGES | DOMESTIC HOT-WATER SUPPLY SYSTEMS | HEATING | VENTILATING | LIGHTING | ELEMENTS OR COMPONENTS THEREFOR
Patent
01/2000, 7
PROBLEM TO BE SOLVED: To prevent bacteria and various germs such as Legionella and the like from growing inside in the case wherein instantaneous water heating... 
MECHANICAL ENGINEERING | WEAPONS | BLASTING | DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS | RANGES | DOMESTIC HOT-WATER SUPPLY SYSTEMS | HEATING | VENTILATING | LIGHTING | ELEMENTS OR COMPONENTS THEREFOR
Patent
Patent
02/2004
1. Field of the Invention A composite strip of compacted powders, which has a three layers structure, is continuously obtained by means of a rolling machine... 
Patent
Patent
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