JPS61141398U - - Google Patents
Info
- Publication number
- JPS61141398U JPS61141398U JP2179085U JP2179085U JPS61141398U JP S61141398 U JPS61141398 U JP S61141398U JP 2179085 U JP2179085 U JP 2179085U JP 2179085 U JP2179085 U JP 2179085U JP S61141398 U JPS61141398 U JP S61141398U
- Authority
- JP
- Japan
- Prior art keywords
- guide rod
- extending
- boom
- column
- support tube
- 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.)
- Granted
Links
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims 1
- 238000011017 operating method Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2179085U JPH0324710Y2 (https=) | 1985-02-16 | 1985-02-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2179085U JPH0324710Y2 (https=) | 1985-02-16 | 1985-02-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61141398U true JPS61141398U (https=) | 1986-09-01 |
| JPH0324710Y2 JPH0324710Y2 (https=) | 1991-05-29 |
Family
ID=30513507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2179085U Expired JPH0324710Y2 (https=) | 1985-02-16 | 1985-02-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0324710Y2 (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63121647U (https=) * | 1987-01-29 | 1988-08-08 |
-
1985
- 1985-02-16 JP JP2179085U patent/JPH0324710Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63121647U (https=) * | 1987-01-29 | 1988-08-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0324710Y2 (https=) | 1991-05-29 |
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