FR321954A - Improvements in electric lamps - Google Patents
Improvements in electric lampsInfo
- Publication number
- FR321954A FR321954A FR321954DA FR321954A FR 321954 A FR321954 A FR 321954A FR 321954D A FR321954D A FR 321954DA FR 321954 A FR321954 A FR 321954A
- Authority
- FR
- France
- Prior art keywords
- electric lamps
- lamps
- electric
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
- H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
- H05B41/22—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps having an auxiliary starting electrode
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR321954T | 1902-04-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR321954A true FR321954A (en) | 1903-01-23 |
Family
ID=1372348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR321954D Expired FR321954A (en) | 1902-04-15 | 1902-04-15 | Improvements in electric lamps |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR321954A (en) |
-
1902
- 1902-04-15 FR FR321954D patent/FR321954A/en not_active Expired
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