FR41808E - Electric lighting device - Google Patents

Electric lighting device

Info

Publication number
FR41808E
FR41808E FR41808DA FR41808E FR 41808 E FR41808 E FR 41808E FR 41808D A FR41808D A FR 41808DA FR 41808 E FR41808 E FR 41808E
Authority
FR
France
Prior art keywords
lighting device
electric lighting
electric
lighting
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)
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.)
Claude Lumiere SA
Original Assignee
Claude Lumiere SA
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 Claude Lumiere SA filed Critical Claude Lumiere SA
Application granted granted Critical
Publication of FR41808E publication Critical patent/FR41808E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
    • H01J17/066—Cold cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups
FR41808D 1931-12-19 1931-12-19 Electric lighting device Expired FR41808E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR41808T 1931-12-19

Publications (1)

Publication Number Publication Date
FR41808E true FR41808E (en) 1933-04-21

Family

ID=8677926

Family Applications (1)

Application Number Title Priority Date Filing Date
FR41808D Expired FR41808E (en) 1931-12-19 1931-12-19 Electric lighting device

Country Status (1)

Country Link
FR (1) FR41808E (en)

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