BE408499A - - Google Patents
Info
- Publication number
- BE408499A BE408499A BE408499DA BE408499A BE 408499 A BE408499 A BE 408499A BE 408499D A BE408499D A BE 408499DA BE 408499 A BE408499 A BE 408499A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/44—Devices for ensuring operation of the switch at a predetermined point in the ac cycle
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE792203X | 1934-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE408499A true BE408499A (US20020095090A1-20020718-M00002.png) |
Family
ID=6706269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE408499D BE408499A (US20020095090A1-20020718-M00002.png) | 1934-03-19 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE408499A (US20020095090A1-20020718-M00002.png) |
| FR (1) | FR792203A (US20020095090A1-20020718-M00002.png) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE757251C (de) * | 1933-09-13 | 1953-09-14 | Siemens Schuckertwerke A G | Ausloesegeraet zum synchronen Abschalten eines Leistungsschalters |
| DE767642C (de) * | 1938-05-14 | 1953-03-02 | Aeg | Synchronsteuereinrichtung fuer elektrische Wechselstromschalter |
-
0
- BE BE408499D patent/BE408499A/xx unknown
-
1935
- 1935-03-19 FR FR792203D patent/FR792203A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR792203A (fr) | 1935-12-26 |
