F01Level 2

ENGINES OR PUMPS

GET/api/v1/systems/patent_cpc/nodes/F01

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F01BMACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES

F01CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES

F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES

F01KSTEAM ENGINE PLANTS

F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES

F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL

F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL

F01PCOOLING OF MACHINES OR ENGINES IN GENERAL

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