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IPC Subgroup
F01D 17/22

the operation or power assistance being predominantly non-mechanical

Introduced: September 1968

Last revised: January 2006

Full Title

Regulating or controlling by varying flow > Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted > the operation or power assistance being predominantly non-mechanical

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
Subclass:
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES

2 direct subcodes

Child Classifications

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