Search Results for: Rotary internal combustion piston engines
(class / ) utilizing shield (mask or stencil) (class / ) tumbling (class / ) utilizing fluent abradant (class / ) glass or stone abrading (class / ) razor, knife, or scissors sharpening (class / ) gauge abrading (class / ) gear or worm abrading (class / ) drill, thread, thread cutter, reamer, or rotary
cutter abrading (class / ) roll, roller, shaft, ball, or piston abrading (class / ) ring, tube, bushing, sleeve, or cylinder abrading (class / ) with critical temperature modification or control of work or abradant (class / ) with critical nonabrading work treating (class / ) with tool treating or forming...
https://patents.justia.com/patents-by-us-classification/451