Automatic impulsing apparatus for automatic telephone systems,申请号GB19470027195-传众专利搜索

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发明名称	Automatic impulsing apparatus for automatic telephone systems
摘要
申请公布号	GB640290(A)	申请公布日期	1950.07.19
申请号	GB19470027195	申请日期	1947.10.09
申请人	EDWARD SHIPTON	发明人
分类号	H04M1/276;H04M1/65;H04M11/04	主分类号	H04M1/276
代理机构		代理人
主权项
地址

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