DE772U - - Google Patents
Info
- Publication number
- DE772U DE772U DENDAT772D DE772DU DE772U DE 772 U DE772 U DE 772U DE NDAT772 D DENDAT772 D DE NDAT772D DE 772D U DE772D U DE 772DU DE 772 U DE772 U DE 772U
- 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.)
- Active
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
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
- E21D23/082—Advancing mechanisms forming parts of the roof supports acting solely on the elements of the supports
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE772U true DE772U (de) |
Family
ID=280538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT772D Active DE772U (de) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE772U (de) |
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0
- DE DENDAT772D patent/DE772U/de active Active
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| Publication | Publication Date | Title |
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| DE772U (de) |