NL50144C - - Google Patents
Info
- Publication number
- NL50144C NL50144C NL50144DA NL50144C NL 50144 C NL50144 C NL 50144C NL 50144D A NL50144D A NL 50144DA NL 50144 C NL50144 C NL 50144C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/12—Electrically-operated arrangements for indicating correct tuning
- H03J3/14—Visual indication, e.g. magic eye
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US138108A US2135571A (en) | 1937-04-21 | 1937-04-21 | Electron ray tube indicator circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL50144C true NL50144C (ja�@�@) |
Family
ID=22480461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL50144D NL50144C (ja�@�@) | 1937-04-21 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2135571A (ja�@�@) |
| CH (1) | CH206046A (ja�@�@) |
| DE (1) | DE691718C (ja�@�@) |
| FR (1) | FR836564A (ja�@�@) |
| GB (1) | GB513859A (ja�@�@) |
| NL (1) | NL50144C (ja�@�@) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE468765A (ja�@�@) * | 1945-10-29 | |||
| US2604531A (en) * | 1946-12-21 | 1952-07-22 | Wurlitzer Co | Impulse remote control system |
-
0
- NL NL50144D patent/NL50144C/xx active
-
1937
- 1937-04-21 US US138108A patent/US2135571A/en not_active Expired - Lifetime
-
1938
- 1938-04-13 FR FR836564D patent/FR836564A/fr not_active Expired
- 1938-04-19 CH CH206046D patent/CH206046A/de unknown
- 1938-04-21 GB GB11938/38A patent/GB513859A/en not_active Expired
- 1938-04-22 DE DE1938R0102130 patent/DE691718C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE691718C (de) | 1940-06-04 |
| US2135571A (en) | 1938-11-08 |
| FR836564A (fr) | 1939-01-20 |
| CH206046A (de) | 1939-07-15 |
| GB513859A (en) | 1939-10-24 |