Paper making roll and process of covering it,申请号US19270179981-传众专利搜索

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发明名称	Paper making roll and process of covering it
摘要
申请公布号	US1829630(A)	申请公布日期	1931.10.27
申请号	US19270179981	申请日期	1927.03.31
申请人	JOHN W. BOLTON AND SONS, INC.	发明人	BOLTON ARCHER LE ROY
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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