JPS6225294Y2 - - Google Patents
Info
- Publication number
- JPS6225294Y2 JPS6225294Y2 JP19246882U JP19246882U JPS6225294Y2 JP S6225294 Y2 JPS6225294 Y2 JP S6225294Y2 JP 19246882 U JP19246882 U JP 19246882U JP 19246882 U JP19246882 U JP 19246882U JP S6225294 Y2 JPS6225294 Y2 JP S6225294Y2
- Authority
- JP
- Japan
- Prior art keywords
- cutter blade
- ring
- main pipe
- attached
- drilling
- 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
- 238000005553 drilling Methods 0.000 claims description 17
- 238000004080 punching Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
- Drilling Tools (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19246882U JPS5997814U (ja) | 1982-12-20 | 1982-12-20 | 穿孔機のカツタ−刃 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19246882U JPS5997814U (ja) | 1982-12-20 | 1982-12-20 | 穿孔機のカツタ−刃 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5997814U JPS5997814U (ja) | 1984-07-03 |
| JPS6225294Y2 true JPS6225294Y2 (xx) | 1987-06-29 |
Family
ID=30414198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19246882U Granted JPS5997814U (ja) | 1982-12-20 | 1982-12-20 | 穿孔機のカツタ−刃 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5997814U (xx) |
-
1982
- 1982-12-20 JP JP19246882U patent/JPS5997814U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5997814U (ja) | 1984-07-03 |
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