BE511952A - - Google Patents
Info
- Publication number
- BE511952A BE511952A BE511952DA BE511952A BE 511952 A BE511952 A BE 511952A BE 511952D A BE511952D A BE 511952DA BE 511952 A BE511952 A BE 511952A
- Authority
- BE
- Belgium
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
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
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)
- Safety Valves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE737748X | 1951-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE511952A true BE511952A (el) |
Family
ID=6642646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE511952D BE511952A (el) | 1951-06-09 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE511952A (el) |
| FR (1) | FR1058141A (el) |
| GB (1) | GB737748A (el) |
-
0
- BE BE511952D patent/BE511952A/xx unknown
-
1952
- 1952-06-06 GB GB14355/52A patent/GB737748A/en not_active Expired
- 1952-06-09 FR FR1058141D patent/FR1058141A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1058141A (fr) | 1954-03-15 |
| GB737748A (en) | 1955-09-28 |