JPH03109712U - - Google Patents
Info
- Publication number
- JPH03109712U JPH03109712U JP1836990U JP1836990U JPH03109712U JP H03109712 U JPH03109712 U JP H03109712U JP 1836990 U JP1836990 U JP 1836990U JP 1836990 U JP1836990 U JP 1836990U JP H03109712 U JPH03109712 U JP H03109712U
- Authority
- JP
- Japan
- Prior art keywords
- core drill
- drilled
- protruding blade
- protruding
- bodies
- 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 1
Landscapes
- Drilling Tools (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1836990U JPH03109712U (el) | 1990-02-26 | 1990-02-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1836990U JPH03109712U (el) | 1990-02-26 | 1990-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03109712U true JPH03109712U (el) | 1991-11-11 |
Family
ID=31521530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1836990U Pending JPH03109712U (el) | 1990-02-26 | 1990-02-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03109712U (el) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4865590A (el) * | 1971-12-10 | 1973-09-10 |
-
1990
- 1990-02-26 JP JP1836990U patent/JPH03109712U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4865590A (el) * | 1971-12-10 | 1973-09-10 |