FR31843E - Dispositifs photo-électriques - Google Patents

Dispositifs photo-électriques

Info

Publication number
FR31843E
FR31843E FR31843DA FR31843E FR 31843 E FR31843 E FR 31843E FR 31843D A FR31843D A FR 31843DA FR 31843 E FR31843 E FR 31843E
Authority
FR
France
Prior art keywords
photoelectric devices
photoelectric
devices
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
English (en)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR31843E publication Critical patent/FR31843E/fr
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02Details
    • H01J40/04Electrodes
    • H01J40/06Photo-emissive cathodes
FR31843D 1926-04-26 1926-04-26 Dispositifs photo-électriques Expired FR31843E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR31843T 1926-04-26

Publications (1)

Publication Number Publication Date
FR31843E true FR31843E (fr) 1927-06-13

Family

ID=8669617

Family Applications (1)

Application Number Title Priority Date Filing Date
FR31843D Expired FR31843E (fr) 1926-04-26 1926-04-26 Dispositifs photo-électriques

Country Status (1)

Country Link
FR (1) FR31843E (fr)

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