Safety chain door retaining latch,申请号US19540420773-传众专利搜索

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发明名称	Safety chain door retaining latch
摘要
申请公布号	US2724257(A)	申请公布日期	1955.11.22
申请号	US19540420773	申请日期	1954.04.05
申请人	SAMUEL SEGAL	发明人	SEGAL SAMUEL
分类号	E05C17/36	主分类号	E05C17/36
代理机构		代理人
主权项
地址

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