Electrical lock and indicator system,申请号US19450605546-传众专利搜索

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发明名称	Electrical lock and indicator system
摘要
申请公布号	US2427040(A)	申请公布日期	1947.09.09
申请号	US19450605546	申请日期	1945.07.17
申请人	WALTER BILLMAN	发明人	BILLMAN WALTER
分类号	E05B65/36	主分类号	E05B65/36
代理机构		代理人
主权项
地址

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