NL6809638A - - Google Patents
Info
- Publication number
- NL6809638A NL6809638A NL6809638A NL6809638A NL6809638A NL 6809638 A NL6809638 A NL 6809638A NL 6809638 A NL6809638 A NL 6809638A NL 6809638 A NL6809638 A NL 6809638A NL 6809638 A NL6809638 A NL 6809638A
- Authority
- NL
- Netherlands
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE701140 | 1967-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6809638A true NL6809638A (en) | 1969-01-14 |
Family
ID=3851161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6809638A NL6809638A (en) | 1967-07-10 | 1968-07-08 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE701140A (en) |
| DE (1) | DE1758628A1 (en) |
| GB (1) | GB1236232A (en) |
| NL (1) | NL6809638A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005019445A1 (en) * | 2005-04-22 | 2006-10-26 | Schulze, Günter | Process and plant for the production of biogas from biomass |
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1967
- 1967-07-10 BE BE701140D patent/BE701140A/xx unknown
-
1968
- 1968-07-08 NL NL6809638A patent/NL6809638A/xx unknown
- 1968-07-09 DE DE19681758628 patent/DE1758628A1/en active Pending
- 1968-07-09 GB GB3258968A patent/GB1236232A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE701140A (en) | 1967-12-18 |
| GB1236232A (en) | 1971-06-23 |
| DE1758628A1 (en) | 1970-12-23 |