Improvements in or relating to step-by-step switches such as are used in automatic telephone systems,申请号GB19310013506-传众专利搜索

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发明名称	Improvements in or relating to step-by-step switches such as are used in automatic telephone systems
摘要
申请公布号	GB378081(A)	申请公布日期	1932.08.08
申请号	GB19310013506	申请日期	1931.05.07
申请人	STANDARD TELEPHONES AND CABLES, LIMITED;CHARLES PERCY SMITH;GEOFFRY NEWTON	发明人
分类号	H01H63/20	主分类号	H01H63/20
代理机构		代理人
主权项
地址

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