FR325396A - Bouclier pour la construction des souterrains - Google Patents
Bouclier pour la construction des souterrainsInfo
- Publication number
- FR325396A FR325396A FR325396DA FR325396A FR 325396 A FR325396 A FR 325396A FR 325396D A FR325396D A FR 325396DA FR 325396 A FR325396 A FR 325396A
- Authority
- FR
- France
- Prior art keywords
- shield
- underground construction
- underground
- construction
- 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
- 238000010276 construction Methods 0.000 title 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
- E21D19/04—Provisional protective covers for working space for use in drifting galleries
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR325396T | 1902-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR325396A true FR325396A (fr) | 1903-04-28 |
Family
ID=1375556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR325396D Expired FR325396A (fr) | 1902-10-18 | 1902-10-18 | Bouclier pour la construction des souterrains |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR325396A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3716997A (en) * | 1971-05-19 | 1973-02-20 | Rees Ltd W | Tunnel boring equipment |
-
1902
- 1902-10-18 FR FR325396D patent/FR325396A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3716997A (en) * | 1971-05-19 | 1973-02-20 | Rees Ltd W | Tunnel boring equipment |
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