FR698632A - Improvements to vacuum tubes - Google Patents

Improvements to vacuum tubes

Info

Publication number
FR698632A
FR698632A FR698632DA FR698632A FR 698632 A FR698632 A FR 698632A FR 698632D A FR698632D A FR 698632DA FR 698632 A FR698632 A FR 698632A
Authority
FR
France
Prior art keywords
vacuum tubes
tubes
vacuum
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.)
Arcturus Radio Tube Co
Original Assignee
Arcturus Radio Tube 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 Arcturus Radio Tube Co filed Critical Arcturus Radio Tube Co
Application granted granted Critical
Publication of FR698632A publication Critical patent/FR698632A/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
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • 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
    • H01J2893/0002—Construction arrangements of electrode systems
FR698632D 1929-07-13 1930-07-07 Improvements to vacuum tubes Expired FR698632A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US698632XA 1929-07-13 1929-07-13

Publications (1)

Publication Number Publication Date
FR698632A true FR698632A (en) 1931-02-02

Family

ID=22091673

Family Applications (1)

Application Number Title Priority Date Filing Date
FR698632D Expired FR698632A (en) 1929-07-13 1930-07-07 Improvements to vacuum tubes

Country Status (1)

Country Link
FR (1) FR698632A (en)

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