FR718752A - Multi-voltage electric bulb with changeover base - Google Patents
Multi-voltage electric bulb with changeover baseInfo
- Publication number
- FR718752A FR718752A FR718752DA FR718752A FR 718752 A FR718752 A FR 718752A FR 718752D A FR718752D A FR 718752DA FR 718752 A FR718752 A FR 718752A
- Authority
- FR
- France
- Prior art keywords
- voltage electric
- electric bulb
- changeover base
- changeover
- base
- 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
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
- H01K9/04—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies with built-in manually operated switch
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR718752T | 1931-06-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR718752A true FR718752A (en) | 1932-01-28 |
Family
ID=9090720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR718752D Expired FR718752A (en) | 1931-06-17 | 1931-06-17 | Multi-voltage electric bulb with changeover base |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR718752A (en) |
-
1931
- 1931-06-17 FR FR718752D patent/FR718752A/en not_active Expired
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