FR657354A - Improvements in intercommunication processes and devices - Google Patents

Improvements in intercommunication processes and devices

Info

Publication number
FR657354A
FR657354A FR657354DA FR657354A FR 657354 A FR657354 A FR 657354A FR 657354D A FR657354D A FR 657354DA FR 657354 A FR657354 A FR 657354A
Authority
FR
France
Prior art keywords
intercommunication
processes
devices
intercommunication processes
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)
Inventor
Julien Loeb
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 filed Critical
Application granted granted Critical
Publication of FR657354A publication Critical patent/FR657354A/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
FR657354D 1928-01-09 1928-01-09 Improvements in intercommunication processes and devices Expired FR657354A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR657354T 1928-01-09

Publications (1)

Publication Number Publication Date
FR657354A true FR657354A (en) 1929-05-22

Family

ID=9008375

Family Applications (1)

Application Number Title Priority Date Filing Date
FR657354D Expired FR657354A (en) 1928-01-09 1928-01-09 Improvements in intercommunication processes and devices

Country Status (1)

Country Link
FR (1) FR657354A (en)

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