Improvements in or relating to envelopes bound in book form,申请号GB19310032537-传众专利搜索

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发明名称	Improvements in or relating to envelopes bound in book form
摘要
申请公布号	GB384779(A)	申请公布日期	1932.12.15
申请号	GB19310032537	申请日期	1931.11.24
申请人	WILLIAM EDWIN ELLENS;JOHN DICKINSON & COMPANY LIMITED	发明人
分类号	B42D1/00;B65D27/00	主分类号	B42D1/00
代理机构		代理人
主权项
地址

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