Improvements in and relating to automatic closing devices for doors,申请号GB19520024805-传众专利搜索

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发明名称	Improvements in and relating to automatic closing devices for doors
摘要
申请公布号	GB748017(A)	申请公布日期	1956.04.18
申请号	GB19520024805	申请日期	1952.10.03
申请人	WILFRED STRIK-STRIKFELDT	发明人
分类号	E05F3/04	主分类号	E05F3/04
代理机构		代理人
主权项
地址

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