FR718752A - Multi-voltage electric bulb with changeover base - Google Patents

Multi-voltage electric bulb with changeover base

Info

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
Application number
Other languages
French (fr)
Inventor
Georges Damiens
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR718752A publication Critical patent/FR718752A/en
Expired legal-status Critical Current

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
FR718752D 1931-06-17 1931-06-17 Multi-voltage electric bulb with changeover base Expired FR718752A (en)

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)

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