Improvements in or relating to telephone systems,申请号GB19310032554-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	Improvements in or relating to telephone systems
摘要
申请公布号	GB383428(A)	申请公布日期	1932.11.17
申请号	GB19310032554	申请日期	1931.11.24
申请人	THE GENERAL ELECTRIC COMPANY LIMITED;ERIC PLAYFAIR FAIRBAIRN	发明人
分类号	H04M1/60	主分类号	H04M1/60
代理机构		代理人
主权项
地址

您可能感兴趣的专利

IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINE

SEAT FOR CHILD-CARE INSTRUMENT

OPTICAL FIBER MODULE, METHOD OF MANUFACTURING OPTICAL FIBER COIL, AND OPTICAL FIBER AMPLIFIER

NOx GENERATION AMOUNT ESTIMATING METHOD FOR INTERNAL COMBUSTION ENGINE

SOLAR POWER GENERATION DEVICE

METHOD FOR COLLECTING NOBLE METAL

BIT ARITHMETIC PROCESSING UNIT AND COMPUTER PROGRAM FOR CONTROLLING BIT ARITHMETIC PROCESSING UNIT

HINGE DEVICE OF DOOR

VEHICLE CONTROL DEVICE

ELECTRIC CONNECTION BOX

POWER DISTRIBUTION UNIT AND MANUFACTURING METHOD THEREFOR

LIN COMMUNICATION APPARATUS

OSCILLATOR AND RADAR APPARATUS

COLLISION AVOIDANCE SYSTEM FOR PROXIMITY/POSITIONING IN FORMATION

COATING METHOD OF PERIPHERAL SURFACE OF TUBULAR BODY

IMAGE READER AND IMAGE EVALUATION PROGRAM