FR87402E - Electric lamp with several independent filaments - Google Patents

Electric lamp with several independent filaments

Info

Publication number
FR87402E
FR87402E FR970239A FR970239A FR87402E FR 87402 E FR87402 E FR 87402E FR 970239 A FR970239 A FR 970239A FR 970239 A FR970239 A FR 970239A FR 87402 E FR87402 E FR 87402E
Authority
FR
France
Prior art keywords
electric lamp
several independent
independent filaments
filaments
several
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
FR970239A
Other languages
French (fr)
Inventor
Gualtiero Cattabiani
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
Priority to FR970239A priority Critical patent/FR87402E/en
Application granted granted Critical
Publication of FR87402E publication Critical patent/FR87402E/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
FR970239A 1964-04-09 1964-04-09 Electric lamp with several independent filaments Expired FR87402E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR970239A FR87402E (en) 1964-04-09 1964-04-09 Electric lamp with several independent filaments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR970239A FR87402E (en) 1964-04-09 1964-04-09 Electric lamp with several independent filaments

Publications (1)

Publication Number Publication Date
FR87402E true FR87402E (en) 1966-08-05

Family

ID=8827348

Family Applications (1)

Application Number Title Priority Date Filing Date
FR970239A Expired FR87402E (en) 1964-04-09 1964-04-09 Electric lamp with several independent filaments

Country Status (1)

Country Link
FR (1) FR87402E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2834819A1 (en) * 2002-01-16 2003-07-18 Patrick Romatet Incandescent lamp bulb has double metal filament connected to external electrical connecting lugs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2834819A1 (en) * 2002-01-16 2003-07-18 Patrick Romatet Incandescent lamp bulb has double metal filament connected to external electrical connecting lugs

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