DE8335645U1 - - Google Patents
Info
- Publication number
- DE8335645U1 DE8335645U1 DE19838335645 DE8335645U DE8335645U1 DE 8335645 U1 DE8335645 U1 DE 8335645U1 DE 19838335645 DE19838335645 DE 19838335645 DE 8335645 U DE8335645 U DE 8335645U DE 8335645 U1 DE8335645 U1 DE 8335645U1
- Authority
- DE
- Germany
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19838335645 DE8335645U1 (fr) | 1983-12-13 | 1983-12-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19838335645 DE8335645U1 (fr) | 1983-12-13 | 1983-12-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE8335645U1 true DE8335645U1 (fr) | 1988-04-14 |
Family
ID=6759784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19838335645 Expired DE8335645U1 (fr) | 1983-12-13 | 1983-12-13 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE8335645U1 (fr) |
-
1983
- 1983-12-13 DE DE19838335645 patent/DE8335645U1/de not_active Expired