FR405810A - Lampe à filament métallique - Google Patents

Lampe à filament métallique

Info

Publication number
FR405810A
FR405810A FR405810A FR405810DA FR405810A FR 405810 A FR405810 A FR 405810A FR 405810 A FR405810 A FR 405810A FR 405810D A FR405810D A FR 405810DA FR 405810 A FR405810 A FR 405810A
Authority
FR
France
Prior art keywords
filament lamp
metal filament
metal
lamp
filament
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
FR405810A
Other languages
English (en)
French (fr)
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.)
Felten & Guilleaume Lahmeyerwe
Original Assignee
Felten & Guilleaume Lahmeyerwe
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 Felten & Guilleaume Lahmeyerwe filed Critical Felten & Guilleaume Lahmeyerwe
Application granted granted Critical
Publication of FR405810A publication Critical patent/FR405810A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
FR405810A 1909-01-02 1909-08-07 Lampe à filament métallique Expired FR405810A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE190917960X 1909-01-02

Publications (1)

Publication Number Publication Date
FR405810A true FR405810A (fr) 1910-01-14

Family

ID=32405341

Family Applications (1)

Application Number Title Priority Date Filing Date
FR405810A Expired FR405810A (fr) 1909-01-02 1909-08-07 Lampe à filament métallique

Country Status (3)

Country Link
DE (1) DE235133C (Direct)
FR (1) FR405810A (Direct)
GB (1) GB190917960A (Direct)

Also Published As

Publication number Publication date
GB190917960A (en) 1910-04-28
DE235133C (Direct)

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