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发明名称
Grinding wheel and method of making the same
摘要
申请公布号
US2034721(A)
申请公布日期
1936.03.24
申请号
US19330688367
申请日期
1933.09.06
申请人
NORTON COMPANY
发明人
HOWE WALLACE L.
分类号
B24D5/04;B24D18/00
主分类号
B24D5/04
代理机构
代理人
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地址
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