Bar-grinding apparatus,申请号US19420466756-传众专利搜索

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法人/股东/高管

发明名称	Bar-grinding apparatus
摘要
申请公布号	US2347639(A)	申请公布日期	1944.04.25
申请号	US19420466756	申请日期	1942.11.24
申请人	WILBUR B. DRIVER COMPANY	发明人	PLATT STEPHEN A.
分类号	B24B7/12	主分类号	B24B7/12
代理机构		代理人
主权项
地址

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