Improvements in or relating to door closing devices,申请号GB19610011366-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	GB930046(A)	申请公布日期	1963.07.03
申请号	GB19610011366	申请日期	1961.03.28
申请人	CECIL JAMES WATKINS	发明人
分类号	E05F1/12	主分类号	E05F1/12
代理机构		代理人
主权项
地址

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