JPS61163109U - - Google Patents
Info
- Publication number
- JPS61163109U JPS61163109U JP4578485U JP4578485U JPS61163109U JP S61163109 U JPS61163109 U JP S61163109U JP 4578485 U JP4578485 U JP 4578485U JP 4578485 U JP4578485 U JP 4578485U JP S61163109 U JPS61163109 U JP S61163109U
- Authority
- JP
- Japan
- Prior art keywords
- blades
- pair
- edge
- double
- different diameters
- 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
- 238000005553 drilling Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
Landscapes
- Drilling Tools (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4578485U JPS61163109U (it) | 1985-03-28 | 1985-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4578485U JPS61163109U (it) | 1985-03-28 | 1985-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61163109U true JPS61163109U (it) | 1986-10-09 |
Family
ID=30559579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4578485U Pending JPS61163109U (it) | 1985-03-28 | 1985-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61163109U (it) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746088U (it) * | 1980-08-25 | 1982-03-13 |
-
1985
- 1985-03-28 JP JP4578485U patent/JPS61163109U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746088U (it) * | 1980-08-25 | 1982-03-13 |