FR1075691A - Nouvel étançon - Google Patents
Nouvel étançonInfo
- Publication number
- FR1075691A FR1075691A FR1075691DA FR1075691A FR 1075691 A FR1075691 A FR 1075691A FR 1075691D A FR1075691D A FR 1075691DA FR 1075691 A FR1075691 A FR 1075691A
- Authority
- FR
- France
- Prior art keywords
- new prop
- prop
- new
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1075691T | 1953-03-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1075691A true FR1075691A (fr) | 1954-10-19 |
Family
ID=9607303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1075691D Expired FR1075691A (fr) | 1953-03-16 | 1953-03-16 | Nouvel étançon |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1075691A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1132878B (de) * | 1960-05-21 | 1962-07-12 | Hermann Schwarz Kommanditgesel | Hydraulisches Stuetzelement fuer den Grubenausbau |
US3240226A (en) * | 1962-05-31 | 1966-03-15 | Mid Atlantic Plastics Corp | Self-tapping service valve fitting |
-
1953
- 1953-03-16 FR FR1075691D patent/FR1075691A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1132878B (de) * | 1960-05-21 | 1962-07-12 | Hermann Schwarz Kommanditgesel | Hydraulisches Stuetzelement fuer den Grubenausbau |
US3240226A (en) * | 1962-05-31 | 1966-03-15 | Mid Atlantic Plastics Corp | Self-tapping service valve fitting |
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