FR443627A - Improvements to mine punches - Google Patents
Improvements to mine punchesInfo
- Publication number
- FR443627A FR443627A FR443627DA FR443627A FR 443627 A FR443627 A FR 443627A FR 443627D A FR443627D A FR 443627DA FR 443627 A FR443627 A FR 443627A
- Authority
- FR
- France
- Prior art keywords
- punches
- mine
- mine punches
- Prior art date
- 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
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/20—General features of equipment for removal of chippings, e.g. for loading on conveyor
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 |
---|---|---|---|
FR443627T | 1912-05-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR443627A true FR443627A (en) | 1912-09-28 |
Family
ID=1484672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR443627D Expired FR443627A (en) | 1912-05-09 | 1912-05-09 | Improvements to mine punches |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR443627A (en) |
-
1912
- 1912-05-09 FR FR443627D patent/FR443627A/en not_active Expired
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