BE491734A - - Google Patents
Info
- Publication number
- BE491734A BE491734A BE491734DA BE491734A BE 491734 A BE491734 A BE 491734A BE 491734D A BE491734D A BE 491734DA BE 491734 A BE491734 A BE 491734A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- F42D1/05—Electric circuits for blasting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/30—Electromagnetic relays specially adapted for actuation by AC
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Direct Current Motors (AREA)
- Electromagnets (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL276538X | 1948-10-29 | ||
| NL230949X | 1949-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE491734A true BE491734A (en:Method) |
Family
ID=26643535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE491734D BE491734A (en:Method) | 1948-10-29 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE491734A (en:Method) |
| CH (1) | CH276538A (en:Method) |
| DE (1) | DE836979C (en:Method) |
| FR (1) | FR998119A (en:Method) |
| GB (1) | GB660974A (en:Method) |
-
0
- BE BE491734D patent/BE491734A/xx unknown
-
1949
- 1949-10-21 FR FR998119D patent/FR998119A/fr not_active Expired
- 1949-10-25 DE DEN65A patent/DE836979C/de not_active Expired
- 1949-10-25 CH CH276538D patent/CH276538A/de unknown
- 1949-10-31 GB GB27838/49A patent/GB660974A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR998119A (fr) | 1952-01-15 |
| DE836979C (de) | 1952-04-17 |
| CH276538A (de) | 1951-07-15 |
| GB660974A (en) | 1951-11-14 |