Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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F01C
ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
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11/00
Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
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F01C11/006
of dissimilar working principle
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F01C11/008
and of complementary function, e.g. internal combustion engine with supercharger
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