FR1146841A - Support bolts for mines - Google Patents
Support bolts for minesInfo
- Publication number
- FR1146841A FR1146841A FR1146841DA FR1146841A FR 1146841 A FR1146841 A FR 1146841A FR 1146841D A FR1146841D A FR 1146841DA FR 1146841 A FR1146841 A FR 1146841A
- Authority
- FR
- France
- Prior art keywords
- mines
- support bolts
- bolts
- support
- 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
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/008—Anchoring or tensioning means
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (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 |
---|---|---|---|
FR1146841T | 1956-02-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1146841A true FR1146841A (en) | 1957-11-15 |
Family
ID=9645601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1146841D Expired FR1146841A (en) | 1956-02-24 | 1956-02-24 | Support bolts for mines |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1146841A (en) |
-
1956
- 1956-02-24 FR FR1146841D patent/FR1146841A/en not_active Expired
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