FR956580A - - Google Patents
Info
- Publication number
- FR956580A FR956580A FR956580DA FR956580A FR 956580 A FR956580 A FR 956580A FR 956580D A FR956580D A FR 956580DA FR 956580 A FR956580 A FR 956580A
- Authority
- FR
- France
- 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 DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0056—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with individual advancing shifting devices
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE956580X | 1943-02-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR956580A true FR956580A (xx) | 1950-02-02 |
Family
ID=1559105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR956580D Expired FR956580A (xx) | 1943-02-11 | 1944-05-26 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE455925A (xx) |
| FR (1) | FR956580A (xx) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1014945B (de) * | 1953-04-09 | 1957-09-05 | Paurat F | Nachgiebiger Grubenausbau mit federnden Ausbauteilen |
| DE974859C (de) * | 1952-12-09 | 1961-05-18 | Konrad Grebe | Schreitender Ausbau in steiler Lagerung |
| DE977365C (de) * | 1950-06-18 | 1966-03-24 | Konrad Grebe | Wandernder Strebausbau |
-
1944
- 1944-05-23 BE BE455925A patent/BE455925A/fr unknown
- 1944-05-26 FR FR956580D patent/FR956580A/fr not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE977365C (de) * | 1950-06-18 | 1966-03-24 | Konrad Grebe | Wandernder Strebausbau |
| DE974859C (de) * | 1952-12-09 | 1961-05-18 | Konrad Grebe | Schreitender Ausbau in steiler Lagerung |
| DE1014945B (de) * | 1953-04-09 | 1957-09-05 | Paurat F | Nachgiebiger Grubenausbau mit federnden Ausbauteilen |
Also Published As
| Publication number | Publication date |
|---|---|
| BE455925A (xx) | 1944-06-30 |