Improvements in and relating to fourdrinier paper making machines,申请号GB19460036990-传众专利搜索

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发明名称	Improvements in and relating to fourdrinier paper making machines
摘要
申请公布号	GB619609(A)	申请公布日期	1949.03.11
申请号	GB19460036990	申请日期	1946.12.16
申请人	JOHN CAMPBELL	发明人
分类号	D21F1/40	主分类号	D21F1/40
代理机构		代理人
主权项
地址

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