Foot actuated switch structure

申请公布号：US2157942(A)

申请号：US19380200221

申请日期：1938.04.05

申请公布日期：1939.05.09

申请人：

PHELPS HENRY V

发明人：PHELPS HENRY V.

分类号：H01H13/16

主分类号：H01H13/16

MANUFACTURE OF PLUNGER RECIPROCATING TYPE PUMP

COMPRESSOR

RECIPROCAL PISTON TYPE COMPRESSOR

DEVICE FOR CONTROLLING VELOCITY OF METALLIC TUBE WORKING TREATMENT EQUIPMENT

WASTE WATER TREATMENT DEVICE

WATER PURIFYING DEVICE

DATA PROCESSING SYSTEM AND ITS DATA PROTECTING METHOD

ATM COMMUNICATION NETWORK

COMMUNICATION BAND CONTROL METHOD

NONVOLATILE SEMICONDUCTOR MEMORY AND MEMORY SYSTEM

IMAGE FORMING DEVICE

REVERSE STAGGER TYPE THIN FILM TRANSISTOR, ITS MANUFACTURE, AND LIQUID CRYSTAL DISPLAY USING THE IT

IMAGE RECORDING DEVICE

HOLLOW MOLDING CONTAINER AND ITS MANUFACTURE

ELECTRONIC DEVICE

CONDUCTIVE COATING COMPOSITIONS AND ELEMENTS CONTAINING THEM

SEMICONDUCTOR DEVICE AND ITS MANUFACTURE

AIR-CONDITIONING DEVICE

DEVICE AND METHOD FOR DISCHARGING FLAT PRODUCT

ULTRASONIC WAVE PROBE