发明名称 |
Device and method for perforating slate |
摘要 |
The hole maker has at least one drive device for at least one hole-making tool and an abutment acting in the working direction of the hole-making tool for at least one slate. The abutment is sprung against the working direction of the hole-making tool. The abutment and the hole-making tool may move as a single unit.
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申请公布号 |
EP1442862(A1) |
申请公布日期 |
2004.08.04 |
申请号 |
EP20040001750 |
申请日期 |
2004.01.28 |
申请人 |
SCHIEFERGRUBEN MAGOG GMBH & CO. KG |
发明人 |
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分类号 |
B28D1/32;(IPC1-7):B28D1/32 |
主分类号 |
B28D1/32 |
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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