FR31985E - Lamp from t. s. f. double compensated filament - Google Patents
Lamp from t. s. f. double compensated filamentInfo
- Publication number
- FR31985E FR31985E FR31985DA FR31985E FR 31985 E FR31985 E FR 31985E FR 31985D A FR31985D A FR 31985DA FR 31985 E FR31985 E FR 31985E
- Authority
- FR
- France
- Prior art keywords
- filament
- lamp
- compensated
- double
- double compensated
- 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
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR31985T | 1926-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR31985E true FR31985E (en) | 1927-08-27 |
Family
ID=8669749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR31985D Expired FR31985E (en) | 1926-01-16 | 1926-01-16 | Lamp from t. s. f. double compensated filament |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR31985E (en) |
-
1926
- 1926-01-16 FR FR31985D patent/FR31985E/en not_active Expired
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