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经营范围
发明名称
WIDE FLAP WHEEL
摘要
申请公布号
US3645049(A)
申请公布日期
1972.02.29
申请号
USD3645049
申请日期
1968.10.21
申请人
MINNESOTA MINING AND MFG. CO.
发明人
CONRAD T. FREERKS;JAMES C. HUPPERT;RALPH E. JAMES
分类号
B24D13/06;(IPC1-7):B24B9/02
主分类号
B24D13/06
代理机构
代理人
主权项
地址
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