Method of making electric contact devices,申请号US19430480629-传众专利搜索

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发明名称	Method of making electric contact devices
摘要
申请公布号	US2429048(A)	申请公布日期	1947.10.14
申请号	US19430480629	申请日期	1943.03.26
申请人	WARD LEONARD ELECTRIC COMPANY	发明人	COHEN ARTHUR M.
分类号	H01C1/14	主分类号	H01C1/14
代理机构		代理人
主权项
地址

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