FR628199A - Improvements to electric discharge vacuum tubes - Google Patents

Improvements to electric discharge vacuum tubes

Info

Publication number
FR628199A
FR628199A FR628199DA FR628199A FR 628199 A FR628199 A FR 628199A FR 628199D A FR628199D A FR 628199DA FR 628199 A FR628199 A FR 628199A
Authority
FR
France
Prior art keywords
electric discharge
vacuum tubes
discharge vacuum
tubes
electric
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.)
Westinghouse Lamp Co
Original Assignee
Westinghouse Lamp Co
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 Westinghouse Lamp Co filed Critical Westinghouse Lamp Co
Application granted granted Critical
Publication of FR628199A publication Critical patent/FR628199A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/002—Chemical composition and manufacture chemical
FR628199D 1926-01-30 1927-01-28 Improvements to electric discharge vacuum tubes Expired FR628199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US628199TA 1926-01-30 1926-01-30

Publications (1)

Publication Number Publication Date
FR628199A true FR628199A (en) 1927-10-19

Family

ID=1541436

Family Applications (1)

Application Number Title Priority Date Filing Date
FR628199D Expired FR628199A (en) 1926-01-30 1927-01-28 Improvements to electric discharge vacuum tubes

Country Status (1)

Country Link
FR (1) FR628199A (en)

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