FR1559553A - - Google Patents
Info
- Publication number
- FR1559553A FR1559553A FR1559553DA FR1559553A FR 1559553 A FR1559553 A FR 1559553A FR 1559553D A FR1559553D A FR 1559553DA FR 1559553 A FR1559553 A FR 1559553A
- 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
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/14—Fluid barriers or rock dusters made to work by, or at the same time as, shots or explosions
- E21F5/146—Rock dusters
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 |
|---|---|---|---|
| FR67007389 | 1962-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1559553A true FR1559553A (cs) | 1969-03-14 |
Family
ID=9694005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1559553D Expired FR1559553A (cs) | 1962-04-16 | 1962-04-16 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1559553A (cs) |
-
1962
- 1962-04-16 FR FR1559553D patent/FR1559553A/fr not_active Expired