Roll,申请号US19350049286-传众专利搜索

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发明名称	Roll
摘要
申请公布号	US2120875(A)	申请公布日期	1938.06.14
申请号	US19350049286	申请日期	1935.11.11
申请人	NATIONAL VULCANIZED FIBRE CO.	发明人	TATNALL JOSEPH S.
分类号	D21F3/08	主分类号	D21F3/08
代理机构		代理人
主权项
地址

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