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chemistry (6) 6
compositions based thereon (6) 6
metallurgy (6) 6
organic macromolecular compounds (6) 6
their preparation or chemical working-up (6) 6
after-treatment not covered by subclasses c08b, c08c, c08f,c08g (5) 5
amplifiers (5) 5
basic electronic circuitry (5) 5
compositions of macromolecular compounds (5) 5
electricity (5) 5
general processes of compounding (5) 5
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use of inorganic or non-macromolecular organic substances ascompounding ingredients (4) 4
macromolecular compounds obtained otherwise than by reactionsonly involving unsaturated carbon-to-carbon bonds (3) 3
performing operations (3) 3
transporting (3) 3
after-treatment of the shaped products, e.g. repairing (2) 2
layered products (2) 2
layered products, i.e. products built-up of strata of flat ornon-flat, e.g. cellular or honeycomb, form (2) 2
shaping of material in a plastic state, not otherwise providedfor (2) 2
shaping or joining of plastics (2) 2
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working of substances in a plastic state, in general (2) 2
adhesive processes not provided for elsewhere (1) 1
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dyes (1) 1
miscellaneous applications of materials (1) 1
miscellaneous compositions (1) 1
natural resins (1) 1
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Patent
04/2011
FIELD: radio engineering. ^ SUBSTANCE: differential operating amplifier includes input differential cascade (DC) (1) with the first (2) and the second (3)... 
AMPLIFIERS | ELECTRICITY | BASIC ELECTRONIC CIRCUITRY
Patent
02/2011
FIELD: radio engineering. ^ SUBSTANCE: differential operating amplifier includes input differential cascade (1) with the first (2) and the second (3) current... 
AMPLIFIERS | ELECTRICITY | BASIC ELECTRONIC CIRCUITRY
Patent
02/2011
FIELD: radio engineering. ^ SUBSTANCE: differential operating amplifier includes input differential cascade (DC) (1) with the first (2) and the second (3)... 
AMPLIFIERS | ELECTRICITY | BASIC ELECTRONIC CIRCUITRY
Patent
02/2011
FIELD: radio engineering. ^ SUBSTANCE: differential amplifier comprises the first (1) and second (2) input transistors (T), between emitters of which a... 
AMPLIFIERS | ELECTRICITY | BASIC ELECTRONIC CIRCUITRY
Patent
02/2011
FIELD: radio engineering. ^ SUBSTANCE: invention may be used as device for amplification of analog signals, in structure of analog microchips of various... 
AMPLIFIERS | ELECTRICITY | BASIC ELECTRONIC CIRCUITRY
Patent
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