NL53731C - - Google Patents
Info
- Publication number
- NL53731C NL53731C NL53731DA NL53731C NL 53731 C NL53731 C NL 53731C NL 53731D A NL53731D A NL 53731DA NL 53731 C NL53731 C NL 53731C
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/14—Magic-eye or analogous tuning indicators
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE519921X | 1938-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL53731C true NL53731C (es) |
Family
ID=6550720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL53731D NL53731C (es) | 1938-05-28 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR854990A (es) |
| GB (1) | GB519921A (es) |
| NL (1) | NL53731C (es) |
-
0
- NL NL53731D patent/NL53731C/xx active
-
1939
- 1939-05-20 FR FR854990D patent/FR854990A/fr not_active Expired
- 1939-05-26 GB GB15665/39A patent/GB519921A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR854990A (fr) | 1940-04-29 |
| GB519921A (en) | 1940-04-09 |