NL274871A - - Google Patents
Info
- Publication number
- NL274871A NL274871A NL274871DA NL274871A NL 274871 A NL274871 A NL 274871A NL 274871D A NL274871D A NL 274871DA NL 274871 A NL274871 A NL 274871A
- Authority
- NL
- Netherlands
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)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH0041738 | 1961-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL274871A true NL274871A (en:Method) |
Family
ID=7154643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL274871D NL274871A (en:Method) | 1961-02-18 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB972317A (en:Method) |
| NL (1) | NL274871A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1226972B (de) * | 1964-10-20 | 1966-10-20 | Gewerk Eisenhuette Westfalia | Hydraulischer Doppel-Teleskopstempel |
-
0
- NL NL274871D patent/NL274871A/xx unknown
-
1962
- 1962-02-19 GB GB636762A patent/GB972317A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB972317A (en) | 1964-10-14 |