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发明名称
POLISHING AND DIAMOND-TRUING MACHINE FOR PHOTOENGRAVING
摘要
申请公布号
US3629974(A)
申请公布日期
1971.12.28
申请号
USD3629974
申请日期
1970.01.21
申请人
GIORGIO ANDREOTTI
发明人
GIORGIO ANDREOTTI
分类号
B24B5/04;B24B25/00;B24D9/08;(IPC1-7):B24B7/00
主分类号
B24B5/04
代理机构
代理人
主权项
地址
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