FR441822A - Dimmable metal filament lamp - Google Patents

Dimmable metal filament lamp

Info

Publication number
FR441822A
FR441822A FR441822A FR441822DA FR441822A FR 441822 A FR441822 A FR 441822A FR 441822 A FR441822 A FR 441822A FR 441822D A FR441822D A FR 441822DA FR 441822 A FR441822 A FR 441822A
Authority
FR
France
Prior art keywords
filament lamp
metal filament
dimmable
dimmable metal
lamp
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
FR441822A
Other languages
French (fr)
Inventor
Leopold Lepiney
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Application granted granted Critical
Publication of FR441822A publication Critical patent/FR441822A/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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/66—Arsenic compounds
    • C07F9/70—Organo-arsenic compounds
    • C07F9/74—Aromatic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR441822A 1912-03-25 1912-03-25 Dimmable metal filament lamp Expired FR441822A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR441822T 1912-03-25

Publications (1)

Publication Number Publication Date
FR441822A true FR441822A (en) 1912-08-17

Family

ID=1483038

Family Applications (1)

Application Number Title Priority Date Filing Date
FR441822A Expired FR441822A (en) 1912-03-25 1912-03-25 Dimmable metal filament lamp

Country Status (1)

Country Link
FR (1) FR441822A (en)

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