NL54648C - - Google Patents
Info
- Publication number
- NL54648C NL54648C NL54648DA NL54648C NL 54648 C NL54648 C NL 54648C NL 54648D A NL54648D A NL 54648DA NL 54648 C NL54648 C NL 54648C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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 |
|---|---|---|---|
| US166251A US2122268A (en) | 1937-09-29 | 1937-09-29 | Tuning indicator tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL54648C true NL54648C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=22602478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL54648D NL54648C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1937-09-29 |
Country Status (5)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE749825C (de) * | 1937-09-30 | 1944-12-06 | Rca Corp | Spannungsanzeigeroehre, insbesondere Abstimmanzeigeroehre |
| DE874345C (de) * | 1940-04-11 | 1953-04-23 | Telefunken Gmbh | Abstimmungsanzeigeroehre |
| NL76700C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1940-07-23 | |||
| US2425877A (en) * | 1944-06-24 | 1947-08-19 | John H Homrighous | Glow and slow acting tube |
| BE519456A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1952-04-26 |
-
0
- BE BE430426D patent/BE430426A/fr unknown
- NL NL54648D patent/NL54648C/xx active
-
1937
- 1937-09-29 US US166251A patent/US2122268A/en not_active Expired - Lifetime
-
1938
- 1938-09-13 FR FR843439D patent/FR843439A/fr not_active Expired
- 1938-09-29 CH CH206305D patent/CH206305A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2122268A (en) | 1938-06-28 |
| FR843439A (fr) | 1939-07-03 |
| CH206305A (de) | 1939-07-31 |
| BE430426A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |