Improvements in loose leaf binders,申请号GB19440017754-传众专利搜索

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发明名称	Improvements in loose leaf binders
摘要
申请公布号	GB581614(A)	申请公布日期	1946.10.18
申请号	GB19440017754	申请日期	1944.09.16
申请人	CHARLES JOHN BROADHURST	发明人
分类号	B42F13/04	主分类号	B42F13/04
代理机构		代理人
主权项
地址

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