JPH0417291Y2 - - Google Patents
Info
- Publication number
- JPH0417291Y2 JPH0417291Y2 JP7163688U JP7163688U JPH0417291Y2 JP H0417291 Y2 JPH0417291 Y2 JP H0417291Y2 JP 7163688 U JP7163688 U JP 7163688U JP 7163688 U JP7163688 U JP 7163688U JP H0417291 Y2 JPH0417291 Y2 JP H0417291Y2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- cutting
- cutting blade
- blades
- counterbore
- 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.)
- Expired
Links
- 238000010276 construction Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 239000011381 foam concrete Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Drilling Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7163688U JPH0417291Y2 (en]) | 1988-05-30 | 1988-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7163688U JPH0417291Y2 (en]) | 1988-05-30 | 1988-05-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01175117U JPH01175117U (en]) | 1989-12-13 |
| JPH0417291Y2 true JPH0417291Y2 (en]) | 1992-04-17 |
Family
ID=31296838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7163688U Expired JPH0417291Y2 (en]) | 1988-05-30 | 1988-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417291Y2 (en]) |
-
1988
- 1988-05-30 JP JP7163688U patent/JPH0417291Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01175117U (en]) | 1989-12-13 |
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