DE2212993A1 - - Google Patents
Info
- Publication number
- DE2212993A1 DE2212993A1 DE19722212993 DE2212993A DE2212993A1 DE 2212993 A1 DE2212993 A1 DE 2212993A1 DE 19722212993 DE19722212993 DE 19722212993 DE 2212993 A DE2212993 A DE 2212993A DE 2212993 A1 DE2212993 A1 DE 2212993A1
- 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.)
- Granted
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)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722212993 DE2212993C2 (de) | 1972-03-17 | 1972-03-17 | Sicherheitskappschuh fur den Tür Stockausbau aus Stahlprofilen im Unter tagebetrieb |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722212993 DE2212993C2 (de) | 1972-03-17 | 1972-03-17 | Sicherheitskappschuh fur den Tür Stockausbau aus Stahlprofilen im Unter tagebetrieb |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2212993A1 true DE2212993A1 (zh) | 1973-03-01 |
DE2212993B1 DE2212993B1 (de) | 1973-03-01 |
DE2212993C2 DE2212993C2 (de) | 1973-09-20 |
Family
ID=5839252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19722212993 Expired DE2212993C2 (de) | 1972-03-17 | 1972-03-17 | Sicherheitskappschuh fur den Tür Stockausbau aus Stahlprofilen im Unter tagebetrieb |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2212993C2 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3237968A1 (de) * | 1982-10-13 | 1984-04-19 | Lorenz-Polygon-Ausbau Gmbh, 4600 Dortmund | "kappschuh fuer den stahlausbau im untertagebetrieb als anschlusselement fuer i-ausbauprofilsegmente" |
-
1972
- 1972-03-17 DE DE19722212993 patent/DE2212993C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2212993B1 (de) | 1973-03-01 |
DE2212993C2 (de) | 1973-09-20 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 | ||
8340 | Patent of addition ceased/non-payment of fee of main patent |