BE348858A - - Google Patents
Info
- Publication number
- BE348858A BE348858A BE348858DA BE348858A BE 348858 A BE348858 A BE 348858A BE 348858D A BE348858D A BE 348858DA BE 348858 A BE348858 A BE 348858A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
- E21C25/10—Rods; Drums
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 |
|---|---|---|---|
| BE668849X | 1928-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE348858A true BE348858A (zh) |
Family
ID=3877387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE348858D BE348858A (zh) | 1928-02-14 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE348858A (zh) |
| FR (1) | FR668849A (zh) |
-
0
- BE BE348858D patent/BE348858A/xx unknown
-
1929
- 1929-02-01 FR FR668849D patent/FR668849A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR668849A (fr) | 1929-11-07 |