JPS63100593U - - Google Patents
Info
- Publication number
- JPS63100593U JPS63100593U JP19255286U JP19255286U JPS63100593U JP S63100593 U JPS63100593 U JP S63100593U JP 19255286 U JP19255286 U JP 19255286U JP 19255286 U JP19255286 U JP 19255286U JP S63100593 U JPS63100593 U JP S63100593U
- Authority
- JP
- Japan
- Prior art keywords
- duct
- resource recovery
- opening
- smaller
- area
- 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
- 238000011084 recovery Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19255286U JPS63100593U (2) | 1986-12-15 | 1986-12-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19255286U JPS63100593U (2) | 1986-12-15 | 1986-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63100593U true JPS63100593U (2) | 1988-06-30 |
Family
ID=31147738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19255286U Pending JPS63100593U (2) | 1986-12-15 | 1986-12-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63100593U (2) |
-
1986
- 1986-12-15 JP JP19255286U patent/JPS63100593U/ja active Pending
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