NL224275A - - Google Patents
Info
- Publication number
- NL224275A NL224275A NL224275A NL224275A NL224275A NL 224275 A NL224275 A NL 224275A NL 224275 A NL224275 A NL 224275A NL 224275 A NL224275 A NL 224275A NL 224275 A NL224275 A NL 224275A
- Authority
- NL
- Netherlands
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
- E21C29/14—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains by haulage cable or chain pulling the machine along the working face
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE224275X | 1957-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL224275A true NL224275A (en:Method) | 1960-11-15 |
Family
ID=1858458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL224275A NL224275A (en:Method) | 1957-01-24 | 1958-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL224275A (en:Method) |
-
1958
- 1958-01-22 NL NL224275A patent/NL224275A/xx unknown