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发明名称
Abrasive article
摘要
申请公布号
US1830757(A)
申请公布日期
1931.11.10
申请号
US19260120527
申请日期
1926.07.03
申请人
THE CARBORUNDUM COMPANY
发明人
HARTMANN MINER L.
分类号
B24D7/00
主分类号
B24D7/00
代理机构
代理人
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地址
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