FR567360A - Ampoule électrotonique - Google Patents
Ampoule électrotoniqueInfo
- Publication number
- FR567360A FR567360A FR567360DA FR567360A FR 567360 A FR567360 A FR 567360A FR 567360D A FR567360D A FR 567360DA FR 567360 A FR567360 A FR 567360A
- Authority
- FR
- France
- Prior art keywords
- electrotonic
- bulb
- electrotonic bulb
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/30—Cold cathodes, e.g. field-emissive cathode
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR567360T | 1923-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR567360A true FR567360A (fr) | 1924-02-29 |
Family
ID=8947729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR567360D Expired FR567360A (fr) | 1923-06-12 | 1923-06-12 | Ampoule électrotonique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR567360A (fr) |
-
1923
- 1923-06-12 FR FR567360D patent/FR567360A/fr not_active Expired
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