Inventor
FRANCIS JOHN H
GB9 patents
⚠️ This page may combine multiple inventors who share the name “FRANCIS JOHN H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FREDERICK MFG CO
5 patentsUS4515028AMay 7, 1985
Multi-speed drive
FREDERICK MFG CO15 citations71
US4459840AJul 17, 1984
Rolling wobble press
FREDERICK MFG CO9 citations71
US4682517AJul 28, 1987
Variable speed drive--apparatus and method of fabricating the apparatus
FREDERICK MFG CO8 citations68
US4644810AFeb 24, 1987
Conical drive
FREDERICK MFG CO3 citations60
US4599910AJul 15, 1986
Speed reducing and torque transmitting mechanism
FREDERICK MFG CO4 citations60