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发明名称
Means for preparing true surfaces
摘要
申请公布号
US2450157(A)
申请公布日期
1948.09.28
申请号
US19460692605
申请日期
1946.08.23
申请人
CHARLES PECKETT SAMUEL
发明人
PECKETT SAMUEL CHARLES
分类号
B24B7/00;B24B41/047
主分类号
B24B7/00
代理机构
代理人
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