IPC Main Group
F01B 21/00 Combinations of two or more machines or engines
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- Subclass:
- MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
Scope Notes
Limiting references: Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
2 direct subcodes
Child Classifications
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- F01B 21/02 the machines or engines being all of reciprocating-piston type
- F01B 21/04 the machines or engines being not all of reciprocating-piston type, e.g. of reciprocating steam engine with steam turbine