DE248991C - - Google Patents
Info
- Publication number
- DE248991C DE248991C DENDAT248991D DE248991DA DE248991C DE 248991 C DE248991 C DE 248991C DE NDAT248991 D DENDAT248991 D DE NDAT248991D DE 248991D A DE248991D A DE 248991DA DE 248991 C DE248991 C DE 248991C
- Authority
- DE
- Germany
- Prior art keywords
- punch
- engages
- pawl
- teeth
- hand lever
- 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
- 208000001848 dysentery Diseases 0.000 claims 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/58—Devices for setting props or chocks
- E21D15/581—Devices for setting props or chocks in which the props are pre- loaded
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE248991C true DE248991C (enExample) |
Family
ID=507651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT248991D Active DE248991C (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE248991C (enExample) |
-
0
- DE DENDAT248991D patent/DE248991C/de active Active
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