Wood-pulp-grinding machine,申请号US19260081542-传众专利搜索

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发明名称	Wood-pulp-grinding machine
摘要
申请公布号	US1757031(A)	申请公布日期	1930.05.06
申请号	US19260081542	申请日期	1926.01.15
申请人	GREAT NORTHERN PAPER COMPANY	发明人	WHITCOMB WILLIAM A.
分类号	D21B1/06	主分类号	D21B1/06
代理机构		代理人
主权项
地址

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