DE231995C - - Google Patents
Info
- Publication number
- DE231995C DE231995C DENDAT231995D DE231995DA DE231995C DE 231995 C DE231995 C DE 231995C DE NDAT231995 D DENDAT231995 D DE NDAT231995D DE 231995D A DE231995D A DE 231995DA DE 231995 C DE231995 C DE 231995C
- Authority
- DE
- Germany
- Prior art keywords
- corner piece
- iron
- claws
- cap
- stamp
- 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.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/34—Joints between vertical props and horizontal top bars
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Door And Window Frames Mounted To Openings (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE231995C true DE231995C (https=) |
Family
ID=492056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT231995D Active DE231995C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE231995C (https=) |
-
0
- DE DENDAT231995D patent/DE231995C/de active Active
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