FR958573A - - Google Patents
Info
- Publication number
- FR958573A FR958573A FR958573DA FR958573A FR 958573 A FR958573 A FR 958573A FR 958573D A FR958573D A FR 958573DA FR 958573 A FR958573 A FR 958573A
- Authority
- FR
- France
- 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
- E21D17/00—Caps for supporting mine roofs
- E21D17/01—Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section
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 |
|---|---|
| FR958573A true FR958573A (en) | 1950-03-15 |
Family
ID=1560667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR958573D Expired FR958573A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR958573A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1058458B (en) * | 1953-08-31 | 1959-06-04 | Wilhelm Reppel | Extension element for longwall and road construction made of steel or light metal for mining |
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0
- FR FR958573D patent/FR958573A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1058458B (en) * | 1953-08-31 | 1959-06-04 | Wilhelm Reppel | Extension element for longwall and road construction made of steel or light metal for mining |