Electrical switch contact means,申请号US19500138130-传众专利搜索

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发明名称	Electrical switch contact means
摘要
申请公布号	US2647188(A)	申请公布日期	1953.07.28
申请号	US19500138130	申请日期	1950.01.12
申请人	POITRAS EDWARD J	发明人	POITRAS EDWARD J.
分类号	H01H37/46	主分类号	H01H37/46
代理机构		代理人
主权项
地址

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