FR999363A - - Google Patents
Info
- Publication number
- FR999363A FR999363A FR999363DA FR999363A FR 999363 A FR999363 A FR 999363A FR 999363D A FR999363D A FR 999363DA FR 999363 A FR999363 A FR 999363A
- 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 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
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/20—Special cross- sections, e.g. corrugated
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR999363A true FR999363A (de) | 1952-01-31 |
Family
ID=1567301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR999363D Expired FR999363A (de) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR999363A (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE966862C (de) * | 1951-10-10 | 1957-09-12 | Bochumer Eisen Heintzmann | Satz von mit Flanschen versehenen Grubenausbauprofilen |
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0
- FR FR999363D patent/FR999363A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE966862C (de) * | 1951-10-10 | 1957-09-12 | Bochumer Eisen Heintzmann | Satz von mit Flanschen versehenen Grubenausbauprofilen |