FR49139E - Improvements to electron beam lamps - Google Patents

Improvements to electron beam lamps

Info

Publication number
FR49139E
FR49139E FR49139DA FR49139E FR 49139 E FR49139 E FR 49139E FR 49139D A FR49139D A FR 49139DA FR 49139 E FR49139 E FR 49139E
Authority
FR
France
Prior art keywords
electron beam
beam lamps
lamps
electron
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.)
Marconis Wireless Telegraph Co Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
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 Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Application granted granted Critical
Publication of FR49139E publication Critical patent/FR49139E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
    • H01J31/04—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with only one or two output electrodes with only two electrically independant groups or electrodes
FR49139D 1938-02-08 1938-02-08 Improvements to electron beam lamps Expired FR49139E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR49139T 1938-02-08

Publications (1)

Publication Number Publication Date
FR49139E true FR49139E (en) 1938-11-07

Family

ID=8684358

Family Applications (1)

Application Number Title Priority Date Filing Date
FR49139D Expired FR49139E (en) 1938-02-08 1938-02-08 Improvements to electron beam lamps

Country Status (1)

Country Link
FR (1) FR49139E (en)

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