FR717682A - Improvements to gas conductive tubes - Google Patents

Improvements to gas conductive tubes

Info

Publication number
FR717682A
FR717682A FR717682DA FR717682A FR 717682 A FR717682 A FR 717682A FR 717682D A FR717682D A FR 717682DA FR 717682 A FR717682 A FR 717682A
Authority
FR
France
Prior art keywords
conductive tubes
gas conductive
gas
tubes
conductive
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 des Lampes
Original Assignee
Compagnie des Lampes
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 des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR717682A publication Critical patent/FR717682A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00Gas-filled discharge tubes with solid cathode
    • H01J17/02Details
    • H01J17/04Electrodes; Screens
    • H01J17/06Cathodes
    • H01J17/066Cold cathodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00Discharge tubes and lamps
    • H01J2893/0064Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065Electrode systems
    • H01J2893/0066Construction, material, support, protection and temperature regulation of electrodes; Electrode cups
FR717682D 1930-05-29 1931-05-27 Improvements to gas conductive tubes Expired FR717682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US717682XA 1930-05-29 1930-05-29

Publications (1)

Publication Number Publication Date
FR717682A true FR717682A (en) 1932-01-12

Family

ID=22103458

Family Applications (1)

Application Number Title Priority Date Filing Date
FR717682D Expired FR717682A (en) 1930-05-29 1931-05-27 Improvements to gas conductive tubes

Country Status (1)

Country Link
FR (1) FR717682A (en)

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