Safety door chain,申请号US19580718035-传众专利搜索

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发明名称	Safety door chain
摘要
申请公布号	US2966053(A)	申请公布日期	1960.12.27
申请号	US19580718035	申请日期	1958.02.27
申请人	MINTZ ALBERT E	发明人	MINTZ ALBERT E.
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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