BE531878A - - Google Patents
Info
- Publication number
- BE531878A BE531878A BE531878DA BE531878A BE 531878 A BE531878 A BE 531878A BE 531878D A BE531878D A BE 531878DA BE 531878 A BE531878 A BE 531878A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/01—Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE769430X | 1952-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE531878A true BE531878A (nl) |
Family
ID=3880140
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE514563D BE514563A (nl) | 1952-10-01 | ||
| BE514564D BE514564A (nl) | 1952-10-01 | ||
| BE531878D BE531878A (nl) | 1952-10-01 |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE514563D BE514563A (nl) | 1952-10-01 | ||
| BE514564D BE514564A (nl) | 1952-10-01 |
Country Status (4)
| Country | Link |
|---|---|
| BE (3) | BE531878A (nl) |
| DE (1) | DE1102078B (nl) |
| FR (1) | FR1087566A (nl) |
| GB (1) | GB769430A (nl) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE199149C (nl) * | 1954-01-29 | |||
| US5839690A (en) * | 1990-06-11 | 1998-11-24 | Blanchette; David John | Inertial acceleration aircraft |
| WO2006076828A1 (fr) * | 2005-01-21 | 2006-07-27 | Zeyu Li | Support de toit hydraulique |
-
0
- BE BE514563D patent/BE514563A/xx unknown
- BE BE514564D patent/BE514564A/xx unknown
- BE BE531878D patent/BE531878A/xx unknown
-
1953
- 1953-09-17 DE DEG12656A patent/DE1102078B/de active Pending
- 1953-09-30 FR FR1087566D patent/FR1087566A/fr not_active Expired
- 1953-10-01 GB GB26944/53A patent/GB769430A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1102078B (de) | 1961-03-16 |
| BE514564A (nl) | |
| FR1087566A (fr) | 1955-02-25 |
| BE514563A (nl) | |
| GB769430A (en) | 1957-03-06 |