|
US2744202A
|
|
Motor
|
|
US2643357A
|
|
Instantly reversible motor
|
|
US2706652A
|
|
Oil seal
|
|
US2674473A
|
|
Bearing seal
|
|
US2558737A
|
|
Rotor balancing means
|
|
US2586867A
|
|
Governor
|
|
US2421865A
|
|
Push-button switch
|
|
US2502463A
|
|
Short circuiter for repulsioninduction electric motors
|
|
US2499390A
|
|
Rotor for alternating current machines
|
|
US2493744A
|
|
Interior radially expanding clutch with equalizing means
|
|
US2441276A
|
|
Power transmission unit
|
|
US2459947A
|
|
Balancing device
|
|
US2520708A
|
|
Electromagnetic circuit controller
|
|
US2450718A
|
|
Hoist
|
|
US2335263A
|
|
Control system for furnaces
|
|
US2291231A
|
|
Damper control system
|
|
US2300839A
|
|
Temperature regulating system
|
|
US2291210A
|
|
Temperature regulating system
|
|
US2296704A
|
|
Temperature regulating system
|
|
US2385369A
|
|
Shaft coupling
|
