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经营范围
发明名称
Polishing pad
摘要
申请公布号
US2544940(A)
申请公布日期
1951.03.13
申请号
US19480044046
申请日期
1948.08.13
申请人
AMERICAN OPTICAL COMPANY
发明人
RITTERBUSCH HARRY F.;LANGEVIN HOMER L.
分类号
B24B13/01
主分类号
B24B13/01
代理机构
代理人
主权项
地址
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