BE492599A - - Google Patents
Info
- Publication number
- BE492599A BE492599A BE492599DA BE492599A BE 492599 A BE492599 A BE 492599A BE 492599D A BE492599D A BE 492599DA BE 492599 A BE492599 A BE 492599A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D99/00—Subject matter not provided for in other groups of this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Bipolar Transistors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US282521XA | 1948-12-30 | 1948-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE492599A true BE492599A (https=) |
Family
ID=21842398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE492599D BE492599A (https=) | 1948-12-30 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE492599A (https=) |
| CH (1) | CH282521A (https=) |
| DE (1) | DE974213C (https=) |
| GB (1) | GB692352A (https=) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA272437A (en) * | 1925-10-22 | 1927-07-19 | Edgar Lilienfeld Julius | Electric current control mechanism |
| GB349584A (en) * | 1928-11-27 | 1931-05-26 | Dubilier Condenser Co 1925 Ltd | A new or improved electric amplifier |
| BE436972A (https=) * | 1938-11-15 | |||
| NL84061C (https=) * | 1948-06-26 |
-
0
- BE BE492599D patent/BE492599A/xx unknown
-
1949
- 1949-11-15 GB GB29239/49A patent/GB692352A/en not_active Expired
- 1949-11-28 CH CH282521D patent/CH282521A/de unknown
-
1950
- 1950-06-08 DE DER2007A patent/DE974213C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB692352A (en) | 1953-06-03 |
| CH282521A (de) | 1952-04-30 |
| DE974213C (de) | 1960-11-17 |