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发明名称
Wheel grinder
摘要
申请公布号
US2578250(A)
申请公布日期
1951.12.11
申请号
US19490099023
申请日期
1949.06.14
申请人
PATAPSCO AND BACK RIVERS RAILROAD COMPANY
发明人
JONES HENRY C.
分类号
B24B5/46;F16L11/22
主分类号
B24B5/46
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代理人
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