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发明名称
Abrading
摘要
申请公布号
US1937459(A)
申请公布日期
1933.11.28
申请号
US19280253392
申请日期
1928.02.10
申请人
AMERICAN OPTICAL COMPANY
发明人
HILL HARRY W.
分类号
B24B13/02
主分类号
B24B13/02
代理机构
代理人
主权项
地址
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