FR43892E - étançon démontable - Google Patents
étançon démontableInfo
- Publication number
- FR43892E FR43892E FR43892DA FR43892E FR 43892 E FR43892 E FR 43892E FR 43892D A FR43892D A FR 43892DA FR 43892 E FR43892 E FR 43892E
- Authority
- FR
- France
- Prior art keywords
- prop
- removable
- removable prop
- 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.)
- Expired
Links
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
- E21D15/60—Devices for withdrawing props or chocks
-
- 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
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR43892T | 1933-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR43892E true FR43892E (fr) | 1934-09-07 |
Family
ID=8679813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR43892D Expired FR43892E (fr) | 1933-09-12 | 1933-09-12 | étançon démontable |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR43892E (fr) |
-
1933
- 1933-09-12 FR FR43892D patent/FR43892E/fr not_active Expired
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