转齿耙

pump (fan, ventilator, blower), rotary pump

positive displacement self-priming progressive cavity rotary pump

garage with rotary rings as means for transport

rotary switch with latch for change of direction of rotation and lost motion

duplicating machine with rotary cylinders for the master

combinations of two or more rotary pumps

intermeshing engagement and intermeshing engagement in rotary-piston machines or engines

combination of rotary-piston pumps with oscillating-piston pumps