发明名称 |
Method and tool for providing a chamfered hole. |
摘要 |
<p>A method for boring a chamfered hole and a tool for boring a hole such that boring may be effected through a hole on a glass plate and to simultaneously effect chamfering on respective apertures on the both sides of the plate, to enable speedy and accurate boring without bringing forth defective product with chipping-off, joggles on the glass plate.</p> |
申请公布号 |
EP0242174(A1) |
申请公布日期 |
1987.10.21 |
申请号 |
EP19870303239 |
申请日期 |
1987.04.14 |
申请人 |
KYOKUWEI OPTICAL GLASS CO. LTD.;ASAHI DIAMOND INDUSTRIAL CO. LTD. |
发明人 |
HIRABAYASHI, TOSHIHIKO;HONDA, KEIJI |
分类号 |
C03B33/00;B24B9/10;B24B27/06;B24D7/18;B28D1/04;C03B33/02 |
主分类号 |
C03B33/00 |
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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