Producing The Signals At Adjustable Fixed Times [g04c 21/16] Patents (Class 968/588)

Cross-Reference Art Collections

By mechanically unlocking an electromechanical vibrator, e.g., actuated by the leakage flux of the electric driving means, etc. [g04c 21/18] (Class 968/589)

Provided with means for sheeting off or temporarily stopping the signal [G04C 21/20F] (Class 968/590)

By closing a contact to ring an electromechanical alarm [g04c 21/20] (Class 968/591)

By the hand(s) or handlike members closing the contact [G04C 21/20B] (Class 968/592)
Put into action by the arbor of a mechanical alarm work [G04C 21/22] (Class 968/593)
Put into action by the spring of a mechanical alarm work [G04C 21/24] (Class 968/594)
Put into action by the vibrations caused by the operation of a mechanical alarm work [G04C 21/26] (Class 968/595)

By closing a contact to put into action electro-acoustic means, e.g., awakening by music, etc. [g04c 21/28] (Class 968/596)

With provision for a number of operations at different times, e.g., ringing the bells in a school, etc. [g04c 21/30] (Class 968/597)

Devices on watches or similar portable timepieces [g04c 21/34] (Class 968/602)

Signal-repeating devices [g04c 21/36] (Class 968/603)

Adjusting the duration of signals [g04c 21/38] (Class 968/604)

There are no patents to show for this class.