• All sections
• F - Mechanical engineeringlightingheatingweaponsblasting
• F16H - Gearing
• F16H 39/12 - Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders with cylinders arranged around, and parallel or approximately parallel to, the main axis of the gearing with stationary cylinders

Patent holdings for IPC class F16H 39/12

Total number of patents in this class: 9

10-year publication summary

Principal owners for this class