FR969984A - - Google Patents
Info
- Publication number
- FR969984A FR969984A FR969984DA FR969984A FR 969984 A FR969984 A FR 969984A FR 969984D A FR969984D A FR 969984DA FR 969984 A FR969984 A FR 969984A
- 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 OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/10—Machines which completely free the mineral from the seam by both slitting and breaking-down
- E21C27/12—Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR969984A true FR969984A (en, 2012) | 1950-12-28 |
Family
ID=1566717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR969984D Expired FR969984A (en, 2012) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR969984A (en, 2012) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1094208B (de) * | 1953-10-26 | 1960-12-08 | Coal Industry Patents Ltd | Hinter einer Walzenschraemmaschine angehaengte und seitlich am Foerdermittel gefuehrte Raeumeinrichtung fuer Bergbau- u. ae. Betriebe |
| DE1172208B (de) * | 1958-06-11 | 1964-06-18 | Hauhinco Maschf | An einem Strebfoerderer von einem Kettentrum hin- und hergezogene Gewinnungsmaschine |
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0
- FR FR969984D patent/FR969984A/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1094208B (de) * | 1953-10-26 | 1960-12-08 | Coal Industry Patents Ltd | Hinter einer Walzenschraemmaschine angehaengte und seitlich am Foerdermittel gefuehrte Raeumeinrichtung fuer Bergbau- u. ae. Betriebe |
| DE1172208B (de) * | 1958-06-11 | 1964-06-18 | Hauhinco Maschf | An einem Strebfoerderer von einem Kettentrum hin- und hergezogene Gewinnungsmaschine |