|
US2306910A
|
|
Gear generator
|
|
US2187062A
|
|
Gear grinding machine
|
|
US2202407A
|
|
Gear cutter
|
|
US2156884A
|
|
Apparatus for hardening metallic bodies by the local application of heat
|
|
US2067551A
|
|
Metal cutting machine
|
|
US2067549A
|
|
Machine for hardening gear teeth
|
|
US2114616A
|
|
Gear lapping machine
|
|
US2124990A
|
|
Cutter sharpening machine
|
|
US2114690A
|
|
Machine for generating tapered gears
|
|
US2051915A
|
|
Gear
|
|
US2108239A
|
|
Cutter sharpening machine
|
|
US2029398A
|
|
Gear generating machine
|
|
US1976813A
|
|
Torque measuring device
|
|
US1978064A
|
|
Attachment for cutting internal gears
|
|
US2010970A
|
|
Machine for cutting helical gears
|
|
US1878730A
|
|
Flexible coupling
|
|
US1750031A
|
|
Machine for generating gear teeth
|
|
US1717817A
|
|
Method of making flexible couplings
|
|
US1878729A
|
|
Change speed gearing for rolling mills and the like
|
|
US1814348A
|
|
Machine for cutting gear teeth
|
