CPC Subgroup
F01C 11/008 Full Title
Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type (F01C13/00 takes precedence; combinations of two or more pumps F04; fluid gearing F16H)
F01C 11/008 Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type (F01C13/00 takes precedence; combinations of two or more pumps F04; fluid gearing F16H)