FR757705A - Improvements in photoelectric devices - Google Patents

Improvements in photoelectric devices

Info

Publication number
FR757705A
FR757705A FR757705DA FR757705A FR 757705 A FR757705 A FR 757705A FR 757705D A FR757705D A FR 757705DA FR 757705 A FR757705 A FR 757705A
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
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.)
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 FR757705A publication Critical patent/FR757705A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02—Details
    • H01J40/14—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
FR757705D 1932-06-29 1933-06-28 Improvements in photoelectric devices Expired FR757705A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US757705XA 1932-06-29 1932-06-29

Publications (1)

Publication Number Publication Date
FR757705A true FR757705A (en) 1933-12-30

Family

ID=22127875

Family Applications (1)

Application Number Title Priority Date Filing Date
FR757705D Expired FR757705A (en) 1932-06-29 1933-06-28 Improvements in photoelectric devices

Country Status (1)

Country Link
FR (1) FR757705A (en)

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