| 发明名称 |
APPARATUS FOR COAXIALLY CUTTING OUT CENTRAL OPENINGS IN DISK, IN PARTICULAR THOSE OF LAGE OUTER DIAMETER, MADE OF SUBSTRATE COVERED ON ONE ON BOTH SIDES WITH ABRASIVE GRAINS |
| 摘要 |
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| 申请公布号 |
PL105550(U1) |
申请公布日期 |
1998.05.11 |
| 申请号 |
PL19960105550U |
申请日期 |
1996.11.06 |
| 申请人 |
KOCHEL STANISLAW;RUSIN JOZEF;KONIOR WIKTOR;SZCZOTKA JAN;OLES ROMAN |
发明人 |
KOCHEL STANISLAW;RUSIN JOZEF;KONIOR WIKTOR;SZCZOTKA JAN;OLES ROMAN |
| 分类号 |
B21D28/04;B26F1/38;B26F1/40;(IPC1-7):B21D28/04 |
主分类号 |
B21D28/04 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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