BE427395A - - Google Patents
Info
- Publication number
- BE427395A BE427395A BE427395DA BE427395A BE 427395 A BE427395 A BE 427395A BE 427395D A BE427395D A BE 427395DA BE 427395 A BE427395 A BE 427395A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/22—Automatic control in amplifiers having discharge tubes
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F7/00—Indoor games using small moving playing bodies, e.g. balls, discs or blocks
- A63F7/06—Games simulating outdoor ball games, e.g. hockey or football
- A63F7/068—Games simulating outdoor ball games, e.g. hockey or football using magnetic power
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/46—Reflex amplifiers
- H03F3/48—Reflex amplifiers with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US140619A US2168193A (en) | 1937-05-04 | 1937-05-04 | Multiband receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE427395A true BE427395A (xx) |
Family
ID=22492057
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE427395D BE427395A (xx) | 1937-05-04 | ||
| BE427895D BE427895A (xx) | 1937-05-04 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE427895D BE427895A (xx) | 1937-05-04 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2168193A (xx) |
| BE (2) | BE427895A (xx) |
| FR (1) | FR837485A (xx) |
| NL (1) | NL54188C (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2636078A (en) * | 1945-04-03 | 1953-04-21 | Jr Lynn W Marsh | Ring circuit |
-
0
- NL NL54188D patent/NL54188C/xx active
- BE BE427395D patent/BE427395A/xx unknown
- BE BE427895D patent/BE427895A/xx unknown
-
1937
- 1937-05-04 US US140619A patent/US2168193A/en not_active Expired - Lifetime
-
1938
- 1938-05-03 FR FR837485D patent/FR837485A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE427895A (xx) | |
| US2168193A (en) | 1939-08-01 |
| FR837485A (fr) | 1939-02-10 |
| NL54188C (xx) |