DIFF Subgroup
F01B 1/08 with cylinders arranged oppositely relative to main shaft and of "flat" type
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements > with cylinders arranged oppositely relative to main shaft and of "flat" type
CPC:
Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements (F01B3/00, F01B5/00 take precedence) > with cylinders arranged oppositely relative to main shaft and of "flat" type
No child classifications to compare. This is a leaf node in both IPC and CPC.