Magnetic escapement

Manually-actuated contact switch for electronic watch

Master/slave clock system

Means for actuating a watch or clock mechanism

Mechanical alarm sounding failure of electrical system

Mechanical system for indicating large size calendar date...

Method and aparatus for synchronising a mechanical...

Method and apparatus for remote control of pendulum machines...

Method and apparatus for synchronising an oscillating system...

Method and arrangement for stabilizing the frequency of...

Method for automatically updating a personal computer system...

Method for detecting position of a stepping motor

Method for making a timepiece stepping motor

Method for slaving a stepping motor and arrangement for...

Method of automatic adjustment of self-contained radio-clock...

Method of damping contact spring

Method of remote control of clock systems

Modular circuit packaging arrangement and method

Modular electronic timer

Motion converter