Improvements relating to door closing apparatus,申请号GB19340020711-传众专利搜索

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发明名称	Improvements relating to door closing apparatus
摘要
申请公布号	GB439748(A)	申请公布日期	1935.12.13
申请号	GB19340020711	申请日期	1934.07.14
申请人	WILLIAM HENRY TONKS;THOMAS STANLEY	发明人
分类号	E05F3/08	主分类号	E05F3/08
代理机构		代理人
主权项
地址

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