Door operating mechanism,申请号US19400353264-传众专利搜索

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发明名称	Door operating mechanism
摘要
申请公布号	US2286572(A)	申请公布日期	1942.06.16
申请号	US19400353264	申请日期	1940.08.19
申请人	QUINN GEORGE W	发明人	QUINN GEORGE W.
分类号	E05F13/02	主分类号	E05F13/02
代理机构		代理人
主权项
地址

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