JPS6438214U - - Google Patents
Info
- Publication number
- JPS6438214U JPS6438214U JP13354187U JP13354187U JPS6438214U JP S6438214 U JPS6438214 U JP S6438214U JP 13354187 U JP13354187 U JP 13354187U JP 13354187 U JP13354187 U JP 13354187U JP S6438214 U JPS6438214 U JP S6438214U
- Authority
- JP
- Japan
- Prior art keywords
- perforating blade
- cutting edge
- cutting
- tip
- drilled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Drilling Tools (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13354187U JPS6438214U (da) | 1987-08-31 | 1987-08-31 | |
| US07/236,755 US4909678A (en) | 1987-08-31 | 1988-08-26 | Boring apparatus for a laminated plate and boring cutter |
| DE3855272T DE3855272T2 (de) | 1987-08-31 | 1988-08-30 | Rotierende Vorrichtung für geschichtete Platten und rotierendes Messer |
| EP88307998A EP0306255B1 (en) | 1987-08-31 | 1988-08-30 | Boring apparatus for a laminated plate and boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13354187U JPS6438214U (da) | 1987-08-31 | 1987-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6438214U true JPS6438214U (da) | 1989-03-07 |
Family
ID=31391496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13354187U Pending JPS6438214U (da) | 1987-08-31 | 1987-08-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6438214U (da) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001157993A (ja) * | 1999-12-02 | 2001-06-12 | Ibiden Co Ltd | 板状物の穴開け方法およびそのためのカッター |
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1987
- 1987-08-31 JP JP13354187U patent/JPS6438214U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001157993A (ja) * | 1999-12-02 | 2001-06-12 | Ibiden Co Ltd | 板状物の穴開け方法およびそのためのカッター |