FR741562A - - Google Patents
Info
- Publication number
- FR741562A FR741562A FR741562DA FR741562A FR 741562 A FR741562 A FR 741562A FR 741562D A FR741562D A FR 741562DA FR 741562 A FR741562 A FR 741562A
- 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
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/02—Transport of mined mineral in galleries
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR741562A true FR741562A (en) | 1933-02-14 |
Family
ID=1546082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR741562D Expired FR741562A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR741562A (en) |
-
0
- FR FR741562D patent/FR741562A/fr not_active Expired