Fiber-stock refiner,申请号US19330678140-传众专利搜索

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发明名称	Fiber-stock refiner
摘要
申请公布号	US1939747(A)	申请公布日期	1933.12.19
申请号	US19330678140	申请日期	1933.06.29
申请人	WIENER JOHN A	发明人	WIENER JOHN A.
分类号	B02C2/10	主分类号	B02C2/10
代理机构		代理人
主权项
地址

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