BE739530A - - Google Patents
Info
- Publication number
- BE739530A BE739530A BE739530DA BE739530A BE 739530 A BE739530 A BE 739530A BE 739530D A BE739530D A BE 739530DA BE 739530 A BE739530 A BE 739530A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681800201 DE1800201A1 (de) | 1968-10-01 | 1968-10-01 | Verfahren zur Gewinnung von Kohle und/oder Mineralien nach dem Stosstraenkverfahren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE739530A true BE739530A (xx) | 1970-03-31 |
Family
ID=5709150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE739530D BE739530A (xx) | 1968-10-01 | 1969-09-29 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE739530A (xx) |
| DE (1) | DE1800201A1 (xx) |
| FR (1) | FR2019589A1 (xx) |
| GB (1) | GB1256556A (xx) |
-
1968
- 1968-10-01 DE DE19681800201 patent/DE1800201A1/de active Pending
-
1969
- 1969-09-29 BE BE739530D patent/BE739530A/xx unknown
- 1969-09-30 GB GB1256556D patent/GB1256556A/en not_active Expired
- 1969-09-30 FR FR6933351A patent/FR2019589A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB1256556A (xx) | 1971-12-08 |
| FR2019589A1 (xx) | 1970-07-03 |
| DE1800201A1 (de) | 1970-05-14 |