FR694144A - Improvements to discharge tubes - Google Patents

Improvements to discharge tubes

Info

Publication number
FR694144A
FR694144A FR694144DA FR694144A FR 694144 A FR694144 A FR 694144A FR 694144D A FR694144D A FR 694144DA FR 694144 A FR694144 A FR 694144A
Authority
FR
France
Prior art keywords
discharge tubes
tubes
discharge
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston 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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR694144A publication Critical patent/FR694144A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/06—Starting switches thermal only
FR694144D 1929-04-29 1930-04-18 Improvements to discharge tubes Expired FR694144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US694144XA 1929-04-29 1929-04-29

Publications (1)

Publication Number Publication Date
FR694144A true FR694144A (en) 1930-11-28

Family

ID=22088824

Family Applications (1)

Application Number Title Priority Date Filing Date
FR694144D Expired FR694144A (en) 1929-04-29 1930-04-18 Improvements to discharge tubes

Country Status (1)

Country Link
FR (1) FR694144A (en)

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