Improvements in or relating to loose leaf bindings,申请号GB19370028204-传众专利搜索

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发明名称	Improvements in or relating to loose leaf bindings
摘要
申请公布号	GB502982(A)	申请公布日期	1939.03.29
申请号	GB19370028204	申请日期	1937.10.16
申请人	JAMES ADAMS KEENE	发明人
分类号	B42F13/00	主分类号	B42F13/00
代理机构		代理人
主权项
地址

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