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发明名称
Appliance for use in cutting and polishing diamonds and other substances
摘要
申请公布号
US2530421(A)
申请公布日期
1950.11.21
申请号
US19470764856
申请日期
1947.07.30
申请人
BURNESS THOMAS P N;ALFRED JOHNSON
发明人
BURNESS THOMAS P. N.;JOHNSON ALFRED
分类号
B24B9/16
主分类号
B24B9/16
代理机构
代理人
主权项
地址
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