FR1072475A - Projection device for divided materials - Google Patents
Projection device for divided materialsInfo
- Publication number
- FR1072475A FR1072475A FR1072475DA FR1072475A FR 1072475 A FR1072475 A FR 1072475A FR 1072475D A FR1072475D A FR 1072475DA FR 1072475 A FR1072475 A FR 1072475A
- Authority
- FR
- France
- Prior art keywords
- projection device
- divided materials
- divided
- materials
- projection
- 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
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
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/06—Filling-up mechanically
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 |
---|---|---|---|
FR1072475T | 1952-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1072475A true FR1072475A (en) | 1954-09-13 |
Family
ID=9605641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1072475D Expired FR1072475A (en) | 1952-12-03 | 1952-12-03 | Projection device for divided materials |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1072475A (en) |
-
1952
- 1952-12-03 FR FR1072475D patent/FR1072475A/en not_active Expired
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