FR634248A - Incandescent electric lamp - Google Patents

Incandescent electric lamp

Info

Publication number
FR634248A
FR634248A FR634248DA FR634248A FR 634248 A FR634248 A FR 634248A FR 634248D A FR634248D A FR 634248DA FR 634248 A FR634248 A FR 634248A
Authority
FR
France
Prior art keywords
electric lamp
incandescent electric
incandescent
lamp
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
Application number
Other languages
French (fr)
Inventor
Ringhald Per Alfred Andersson
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 FR634248A publication Critical patent/FR634248A/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
FR634248D 1926-04-29 1927-04-28 Incandescent electric lamp Expired FR634248A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE634248X 1926-04-29

Publications (1)

Publication Number Publication Date
FR634248A true FR634248A (en) 1928-02-11

Family

ID=20313606

Family Applications (1)

Application Number Title Priority Date Filing Date
FR634248D Expired FR634248A (en) 1926-04-29 1927-04-28 Incandescent electric lamp

Country Status (1)

Country Link
FR (1) FR634248A (en)

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