JPH0457587U - - Google Patents
Info
- Publication number
- JPH0457587U JPH0457587U JP10014290U JP10014290U JPH0457587U JP H0457587 U JPH0457587 U JP H0457587U JP 10014290 U JP10014290 U JP 10014290U JP 10014290 U JP10014290 U JP 10014290U JP H0457587 U JPH0457587 U JP H0457587U
- Authority
- JP
- Japan
- Prior art keywords
- guide
- tip
- diameter portion
- guide bar
- face
- 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
- 239000011435 rock Substances 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10014290U JPH0457587U (de) | 1990-09-27 | 1990-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10014290U JPH0457587U (de) | 1990-09-27 | 1990-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0457587U true JPH0457587U (de) | 1992-05-18 |
Family
ID=31842562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10014290U Pending JPH0457587U (de) | 1990-09-27 | 1990-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0457587U (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006161392A (ja) * | 2004-12-07 | 2006-06-22 | Okumura Corp | 穿孔機 |
| JP2020002385A (ja) * | 2018-06-25 | 2020-01-09 | 日本製鉄株式会社 | 高炉の銑鉄切断装置及び高炉の銑鉄切断方法 |
-
1990
- 1990-09-27 JP JP10014290U patent/JPH0457587U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006161392A (ja) * | 2004-12-07 | 2006-06-22 | Okumura Corp | 穿孔機 |
| JP2020002385A (ja) * | 2018-06-25 | 2020-01-09 | 日本製鉄株式会社 | 高炉の銑鉄切断装置及び高炉の銑鉄切断方法 |
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