Electric switch operating device,申请号US19300475221-传众专利搜索

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发明名称	Electric switch operating device
摘要
申请公布号	US1882914(A)	申请公布日期	1932.10.18
申请号	US19300475221	申请日期	1930.08.14
申请人	RICHTERKESSING FRANK H	发明人	RICHTERKESSING FRANK H.
分类号	B61L11/00	主分类号	B61L11/00
代理机构		代理人
主权项
地址

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