DIFF Subgroup
F01B 15/02 with reciprocating cylinders (with one piston within another F01B7/20)
Introduced: September 1968
Title
Titles differ between systems:
IPC: with reciprocating cylinders
CPC: with reciprocating cylinders (with one piston within another F01B7/20)
Full Title
Full titles differ between systems:
IPC:
Reciprocating-piston machines or engines with movable cylinders other than provided for in group > with reciprocating cylinders
CPC:
Reciprocating-piston machines or engines with movable cylinders other than provided for in group F01B13/00 > with reciprocating cylinders (with one piston within another F01B7/20)
No child classifications to compare. This is a leaf node in both IPC and CPC.