FR574299A - - Google Patents
Info
- Publication number
- FR574299A FR574299A FR574299DA FR574299A FR 574299 A FR574299 A FR 574299A FR 574299D A FR574299D A FR 574299DA FR 574299 A FR574299 A FR 574299A
- 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
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
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 |
|---|---|
| FR574299A true FR574299A (cs) | 1924-07-09 |
Family
ID=1539312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR574299D Expired FR574299A (cs) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR574299A (cs) |
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0
- FR FR574299D patent/FR574299A/fr not_active Expired