Machanically regulated timepiece
Magnetic escapement
Manual date advance mechanism for a watch
Manually-actuated contact switch for electronic watch
Master/slave clock system
Means controlling a flue damper
Means for actuating a watch or clock mechanism
Means for loading or extracting data from a portable object,...
Means for mounting terminal blades in a housing of a timer
Measurement averaging counting apparatus employing a...
Measurement of average duty cycle
Measurement of minimum of a series of time intervals
Measuring foot contact time and foot loft time of a person...
Measuring instrument
Mechanical alarm sounding failure of electrical system
Mechanical system for indicating large size calendar date...
Mechanical system indicating large size calendar date for...
Mechanical timer fail-safe mechanism
Mechanical timer including cam operated clapper and chime
Mechanism for musical watch and speed control