US3309590A
|
|
Magnetic impelling system for mechanical oscillators
|
US3310690A
|
|
Permanent magnet resonator
|
US3336537A
|
|
Voltage and temperature compensation for oscillators using forward poled diodes
|
US3356919A
|
|
Transistor circuit for the operation of electronic clocks
|
US3196603A
|
|
Magnetic movement system for electronic or electric clocks
|
US3354329A
|
|
Magnet arrangement for electric and electronic clocks
|
US3225536A
|
|
Electric clock
|
US3091076A
|
|
Electrically operated clock with alarm device
|
US3268786A
|
|
Electric razor
|
US3100278A
|
|
Electromagnetic pendulum drive
|
US3061724A
|
|
Radiation detection device
|
US2995695A
|
|
Rechargeable battery
|
US3021468A
|
|
Rechargeable flashlight battery and circuit for recharging same
|