Device for reducing materials,申请号US19250074223-传众专利搜索

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发明名称	Device for reducing materials
摘要
申请公布号	US1756253(A)	申请公布日期	1930.04.29
申请号	US19250074223	申请日期	1925.12.09
申请人	LYKKEN HENRY G	发明人	LYKKEN HENRY G.
分类号	B02C19/00;B02C23/00	主分类号	B02C19/00
代理机构		代理人
主权项
地址

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