BE567926A - - Google Patents
Info
- Publication number
- BE567926A BE567926A BE567926DA BE567926A BE 567926 A BE567926 A BE 567926A BE 567926D A BE567926D A BE 567926DA BE 567926 A BE567926 A BE 567926A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK32022A DE1113193B (en) | 1957-05-23 | 1957-05-23 | Hydraulic pit ram |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE567926A true BE567926A (en) |
Family
ID=7219329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE567926D BE567926A (en) | 1957-05-23 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE567926A (en) |
| DE (1) | DE1113193B (en) |
| FR (1) | FR1196318A (en) |
| GB (1) | GB866242A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL300061A (en) * | 1963-08-19 |
-
0
- BE BE567926D patent/BE567926A/xx unknown
-
1957
- 1957-05-23 DE DEK32022A patent/DE1113193B/en active Pending
-
1958
- 1958-05-22 FR FR1196318D patent/FR1196318A/en not_active Expired
- 1958-05-22 GB GB1647758A patent/GB866242A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1113193B (en) | 1961-08-31 |
| GB866242A (en) | 1961-04-26 |
| FR1196318A (en) | 1959-11-23 |