Improved reinforced paper or cardboard,申请号GB19390011752-传众专利搜索

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发明名称	Improved reinforced paper or cardboard
摘要
申请公布号	GB527674(A)	申请公布日期	1940.10.14
申请号	GB19390011752	申请日期	1939.04.19
申请人	GEORGE ALEXANDER ROBERTS POWELL	发明人
分类号	D21J1/16	主分类号	D21J1/16
代理机构		代理人
主权项
地址

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