Improvements in or relating to door closing devices,申请号GB19570013018-传众专利搜索

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发明名称	Improvements in or relating to door closing devices
摘要
申请公布号	GB839019(A)	申请公布日期	1960.06.29
申请号	GB19570013018	申请日期	1957.04.24
申请人	ROGER CHARPENTIER	发明人
分类号	E05C19/16	主分类号	E05C19/16
代理机构		代理人
主权项
地址

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