for reciprocating engines or similar machines

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Frames or casings of engines, machines, or apparatus; Frames serving as machinery beds > for reciprocating engines or similar machines

CPC:

Frames or casings of engines, machines or apparatus; Frames serving as machinery beds > for reciprocating engines or similar machines

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

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F16M 1/021 for housing crankshafts IPC+CPC Available in IPC and CPC
F16M 1/026 for housing movable engine or machine parts other than crankshafts, e.g. valve-gear housings IPC+CPC Available in IPC and CPC

Class F16,2013–2023, worldwide · Source: EPO PATSTAT

Class F16,2013–2023, worldwide · Source: EPO PATSTAT