FR625668A - Improvements to t-valve lamps. s. f. - Google Patents

Improvements to t-valve lamps. s. f.

Info

Publication number
FR625668A
FR625668A FR625668DA FR625668A FR 625668 A FR625668 A FR 625668A FR 625668D A FR625668D A FR 625668DA FR 625668 A FR625668 A FR 625668A
Authority
FR
France
Prior art keywords
lamps
valve
valve lamps
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.)
Chiarelli & Cie
Original Assignee
Chiarelli & Cie
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 Chiarelli & Cie filed Critical Chiarelli & Cie
Application granted granted Critical
Publication of FR625668A publication Critical patent/FR625668A/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
    • 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
FR625668D 1926-12-03 1926-12-03 Improvements to t-valve lamps. s. f. Expired FR625668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR625668T 1926-12-03

Publications (1)

Publication Number Publication Date
FR625668A true FR625668A (en) 1927-08-17

Family

ID=8987858

Family Applications (1)

Application Number Title Priority Date Filing Date
FR625668D Expired FR625668A (en) 1926-12-03 1926-12-03 Improvements to t-valve lamps. s. f.

Country Status (1)

Country Link
FR (1) FR625668A (en)

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