FR702770A - Device intended for the illumination of graduated scales of t receiving devices. s. f. and similar devices - Google Patents
Device intended for the illumination of graduated scales of t receiving devices. s. f. and similar devicesInfo
- Publication number
- FR702770A FR702770A FR702770DA FR702770A FR 702770 A FR702770 A FR 702770A FR 702770D A FR702770D A FR 702770DA FR 702770 A FR702770 A FR 702770A
- Authority
- FR
- France
- Prior art keywords
- devices
- illumination
- device intended
- graduated scales
- receiving devices
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/02—Indicating arrangements
- H03J1/04—Indicating arrangements with optical indicating means
- H03J1/044—Illumination of the tuning dial; On and off switching of the illumination; Circuits related with illumination
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL357770X | 1929-10-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR702770A true FR702770A (en) | 1931-04-16 |
Family
ID=19785289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR702770D Expired FR702770A (en) | 1929-10-03 | 1930-09-29 | Device intended for the illumination of graduated scales of t receiving devices. s. f. and similar devices |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE373768A (en) |
FR (1) | FR702770A (en) |
GB (1) | GB357770A (en) |
-
0
- BE BE373768D patent/BE373768A/xx unknown
-
1930
- 1930-09-22 GB GB28294/30A patent/GB357770A/en not_active Expired
- 1930-09-29 FR FR702770D patent/FR702770A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB357770A (en) | 1931-10-01 |
BE373768A (en) |
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