FR1265718A - étai hydraulique de mines - Google Patents
étai hydraulique de minesInfo
- Publication number
- FR1265718A FR1265718A FR836451A FR836451A FR1265718A FR 1265718 A FR1265718 A FR 1265718A FR 836451 A FR836451 A FR 836451A FR 836451 A FR836451 A FR 836451A FR 1265718 A FR1265718 A FR 1265718A
- Authority
- FR
- France
- Prior art keywords
- mine prop
- hydraulic mine
- hydraulic
- prop
- mine
- 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
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR836451A FR1265718A (fr) | 1959-08-21 | 1960-08-22 | étai hydraulique de mines |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2872359A GB962542A (en) | 1959-08-21 | 1959-08-21 | Improvements in and relating to hydraulic props |
FR836451A FR1265718A (fr) | 1959-08-21 | 1960-08-22 | étai hydraulique de mines |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1265718A true FR1265718A (fr) | 1961-06-30 |
Family
ID=26187227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR836451A Expired FR1265718A (fr) | 1959-08-21 | 1960-08-22 | étai hydraulique de mines |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1265718A (fr) |
-
1960
- 1960-08-22 FR FR836451A patent/FR1265718A/fr not_active Expired
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