Automatic lock for record book metal,申请号US19300501185-传众专利搜索

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发明名称	Automatic lock for record book metal
摘要
申请公布号	US1916396(A)	申请公布日期	1933.07.04
申请号	US19300501185	申请日期	1930.12.10
申请人	WILSON-JONES COMPANY	发明人	UNGER PAUL O.
分类号	B42F13/00	主分类号	B42F13/00
代理机构		代理人
主权项
地址

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