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3254175 Magnetic proximity switch  
3251962 Precision magnetic keyboard switch  
3250871 Rotational speed control switch  
3249713 Magnetic switch control sensor  
3249714 Magnetically operable switching device  
3247343 Magnetically operated switches  
3244828 Coin collecting drawer alarm switch  
3243541 Reed switch with magnwetically responsive reed elements  
3240891 Inertial switch  
3239658 Ladies' purse light with magnetic switch  
3234341 Electrical switching device with retractable actuator  
3233061 Magnetically detented keyboard switch  
3233235 Signaling level  
3229084 Portable light  
3226506 Magnetic device for circuit control  
3226621 Sewing machine drive  
3222474 Switching device having magnetic detent action  
3218506 Piezoelectric ignition system having a magnetically actuated vacuum switch  
3211267 Non-monetary token vending apparatus  
3207874 Current responsive device  
3207877 Thermostatic switch with permanent magnet induced snap action  
3206572 Fluid differential pressure and magnetically operated electric switch  
3204060 Snap-action magnetic switch employing a flexible bimetal switch arm  
3202783 Switch with pole plates having a separation of non-magnetizable material  
3201537 High speed magnetic electric switch  
3198904 Magnetically actuated switching mechanism for well working tool  
3198903 Control switch assembly, particularly for appliances such as clothes dryers  
3199093 Erasure prevention control for magnetic tape recorder  
3193645 Magnetic control device  
3193642 Vibratory switch, chiefly for ignition systems  
3193198 Control apparatus  
3191935 Pin detection means including electrically conductive and magnetically responsive circuit closing particles  
3188420 Adjustable magnetic snap-action pressure switch  
3187127 Magnetic reed proximity switch  
3187129 Magnetic switch assembly  
3175422 Memory storage pin detent means for electro-mechanical memories  
3176096 Magnetic proximity-sensing devices  
3176097 Pushbutton magnetic switch with a memory  
3175060 Plunger operated magnetic electric switch  
3170999 Silent magnetically operated snapaction electric switch  
3170052 Magnetically restorable sensing switch  
3167624 Permanent magnetic switch  
3164696 Vane operated magnetic reed switch  
3163989 Apparatus for imparting reciprocating motion to a structure  
3164698 Magnetic rotary pulse switch  
3161744 Electromagnetic circuit controlling devices  
3158710 Code mechanism having a permanent magnet slidably received in an aperture in a magnetic member  
3153710 Electrostatic relay for measuring small currents and charges  
3151227 Electromagnetically operated switching mechanism  
3147819 Seat belt control for ignition system