Hydraulic controls for machines, motors and engines; cylinders for machines; hydraulic cylinders for machines; hydraulic pumps; pumps as parts of machines, motors and engines; oil pumps for use in motors and engines; motor-pumps, namely, pneumatic pumps; water pumps for use in motors; hydraulic control mechanism for machines, engines and motors; hydraulic and pneumatic motor control units; pneumatic controls for machines, motors and engines; gears for machines; power take-offs, namely, engine...