FR31985E - Lampe de t. s. f. à filament double compensé - Google Patents

Lampe de t. s. f. à filament double compensé

Info

Publication number
FR31985E
FR31985E FR31985DA FR31985E FR 31985 E FR31985 E FR 31985E FR 31985D A FR31985D A FR 31985DA FR 31985 E FR31985 E FR 31985E
Authority
FR
France
Prior art keywords
filament
lamp
compensated
double
double compensated
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
English (en)
Inventor
Jacques-Antoine-Mari Hawadier
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 FR31985E publication Critical patent/FR31985E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current
FR31985D 1926-01-16 1926-01-16 Lampe de t. s. f. à filament double compensé Expired FR31985E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR31985T 1926-01-16

Publications (1)

Publication Number Publication Date
FR31985E true FR31985E (fr) 1927-08-27

Family

ID=8669749

Family Applications (1)

Application Number Title Priority Date Filing Date
FR31985D Expired FR31985E (fr) 1926-01-16 1926-01-16 Lampe de t. s. f. à filament double compensé

Country Status (1)

Country Link
FR (1) FR31985E (fr)

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