FR392149A - Perforatrice - Google Patents
PerforatriceInfo
- Publication number
- FR392149A FR392149A FR392149DA FR392149A FR 392149 A FR392149 A FR 392149A FR 392149D A FR392149D A FR 392149DA FR 392149 A FR392149 A FR 392149A
- Authority
- FR
- France
- Prior art keywords
- punch
- 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
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/106—Making by using boring or cutting machines with percussive tools, e.g. pick-hammers
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological 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 |
---|---|---|---|
FR392149T | 1908-03-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR392149A true FR392149A (fr) | 1908-11-18 |
Family
ID=1437550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR392149D Expired FR392149A (fr) | 1908-03-20 | 1908-03-20 | Perforatrice |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR392149A (fr) |
-
1908
- 1908-03-20 FR FR392149D patent/FR392149A/fr not_active Expired
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