Doorknob attaching device,申请号US19510217550-传众专利搜索

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发明名称	Doorknob attaching device
摘要
申请公布号	US2701735(A)	申请公布日期	1955.02.08
申请号	US19510217550	申请日期	1951.03.26
申请人	SAMUEL SEGAL	发明人	SEGAL SAMUEL
分类号	E05B3/04	主分类号	E05B3/04
代理机构		代理人
主权项
地址

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