DE2216540A1 - - Google Patents
Info
- Publication number
- DE2216540A1 DE2216540A1 DE19722216540 DE2216540A DE2216540A1 DE 2216540 A1 DE2216540 A1 DE 2216540A1 DE 19722216540 DE19722216540 DE 19722216540 DE 2216540 A DE2216540 A DE 2216540A DE 2216540 A1 DE2216540 A1 DE 2216540A1
- Authority
- DE
- Germany
- 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.)
- Withdrawn
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
- E21C29/20—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains with safety devices operating in the event of breakage of the cable or chain
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722216540 DE2216540A1 (da) | 1972-04-06 | 1972-04-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722216540 DE2216540A1 (da) | 1972-04-06 | 1972-04-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2216540A1 true DE2216540A1 (da) | 1972-12-21 |
Family
ID=5841141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19722216540 Withdrawn DE2216540A1 (da) | 1972-04-06 | 1972-04-06 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2216540A1 (da) |
-
1972
- 1972-04-06 DE DE19722216540 patent/DE2216540A1/de not_active Withdrawn
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 | ||
EGZ | Application of addition ceased through non-payment of annual fee of main patent |