JPS62120598U - - Google Patents
Info
- Publication number
- JPS62120598U JPS62120598U JP775686U JP775686U JPS62120598U JP S62120598 U JPS62120598 U JP S62120598U JP 775686 U JP775686 U JP 775686U JP 775686 U JP775686 U JP 775686U JP S62120598 U JPS62120598 U JP S62120598U
- Authority
- JP
- Japan
- Prior art keywords
- pin hole
- shield body
- segment
- shield
- small
- 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
- 230000002265 prevention Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP775686U JPS62120598U (OSRAM) | 1986-01-24 | 1986-01-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP775686U JPS62120598U (OSRAM) | 1986-01-24 | 1986-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62120598U true JPS62120598U (OSRAM) | 1987-07-31 |
Family
ID=30791505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP775686U Pending JPS62120598U (OSRAM) | 1986-01-24 | 1986-01-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62120598U (OSRAM) |
-
1986
- 1986-01-24 JP JP775686U patent/JPS62120598U/ja active Pending
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