DIFF Subgroup
F01C 17/066 Full Title
Arrangements for drive of co-operating members, e.g. for rotary piston and casing > using cranks, universal joints or similar elements (F01C1/07 takes precedence)
F01C 17/066 Arrangements for drive of co-operating members, e.g. for rotary piston and casing > using cranks, universal joints or similar elements (F01C1/07 takes precedence)