X
Search Filters
Format Format
Subjects Subjects
Subjects Subjects
X
Sort by Item Count (A-Z)
Filter by Count
chemistry (4) 4
metallurgy (4) 4
blasting (3) 3
cold rooms (3) 3
combined heating and refrigeration systems (3) 3
compositions based thereon (3) 3
cooling or freezing apparatus not covered by any othersubclass (3) 3
heat pump systems (3) 3
heating (3) 3
ice-boxes (3) 3
lighting (3) 3
liquefaction solidification of gases (3) 3
manufacture or storage of ice (3) 3
mechanical engineering (3) 3
organic macromolecular compounds (3) 3
refrigeration or cooling (3) 3
refrigerators (3) 3
their preparation or chemical working-up (3) 3
weapons (3) 3
compositions of macromolecular compounds (2) 2
casting (1) 1
casting of metals (1) 1
casting of other substances by the same processes or devices (1) 1
coffee mills (1) 1
domestic articles or appliances (1) 1
foundry moulding (1) 1
furniture (1) 1
human necessities (1) 1
impregnating or coating of paper (1) 1
macromolecular compounds obtained otherwise than by reactionsonly involving unsaturated carbon-to-carbon bonds (1) 1
paper (1) 1
paper not otherwise provided for (1) 1
paper-making (1) 1
paying counters (1) 1
performing operations (1) 1
powder metallurgy (1) 1
preparation thereof not covered by subclasses d21c or d21d (1) 1
production of cellulose (1) 1
pulp compositions (1) 1
special furniture, fittings, or accessories for shops,storehouses, bars, restaurants or the like (1) 1
spice mills (1) 1
suction cleaners in general (1) 1
textiles (1) 1
transporting (1) 1
treatment of finished paper not covered by class b31 or subclass d21g (1) 1
treatment of water, waste water, sewage, or sludge (1) 1
more...
Language Language
Publication Date Publication Date
Click on a bar to filter by decade
Slide to change publication date range


No results were found for your search.

Cannot display more than 1000 results, please narrow the terms of your search.