FR2082981A5 - - Google Patents
Info
- Publication number
- FR2082981A5 FR2082981A5 FR7041430A FR7041430A FR2082981A5 FR 2082981 A5 FR2082981 A5 FR 2082981A5 FR 7041430 A FR7041430 A FR 7041430A FR 7041430 A FR7041430 A FR 7041430A FR 2082981 A5 FR2082981 A5 FR 2082981A5
- Authority
- FR
- France
- 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
- E21C37/00—Other methods or devices for dislodging with or without loading
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
-
- 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
- E21D9/006—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/045—Arrangements for electric ignition
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US87800569A | 1969-11-19 | 1969-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2082981A5 true FR2082981A5 (enExample) | 1971-12-10 |
Family
ID=25371179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7041430A Expired FR2082981A5 (enExample) | 1969-11-19 | 1970-11-18 |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA943812A (enExample) |
| CH (1) | CH531160A (enExample) |
| FR (1) | FR2082981A5 (enExample) |
| NO (1) | NO124451B (enExample) |
| SE (1) | SE359886B (enExample) |
-
1970
- 1970-10-14 CA CA095,576A patent/CA943812A/en not_active Expired
- 1970-11-09 CH CH1657470A patent/CH531160A/fr not_active IP Right Cessation
- 1970-11-17 SE SE1553170A patent/SE359886B/xx unknown
- 1970-11-18 FR FR7041430A patent/FR2082981A5/fr not_active Expired
- 1970-11-18 NO NO440370A patent/NO124451B/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO124451B (enExample) | 1972-04-17 |
| CH531160A (fr) | 1972-11-30 |
| CA943812A (en) | 1974-03-19 |
| SE359886B (enExample) | 1973-09-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |