FR557879A - Photoelectric device - Google Patents

Photoelectric device

Info

Publication number
FR557879A
FR557879A FR557879DA FR557879A FR 557879 A FR557879 A FR 557879A FR 557879D A FR557879D A FR 557879DA FR 557879 A FR557879 A FR 557879A
Authority
FR
France
Prior art keywords
photoelectric device
photoelectric
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
Theodore Willard Case
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 FR557879A publication Critical patent/FR557879A/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
    • H01J40/04—Electrodes
FR557879D 1922-10-27 1922-10-27 Photoelectric device Expired FR557879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR557879T 1922-10-27

Publications (1)

Publication Number Publication Date
FR557879A true FR557879A (en) 1923-08-17

Family

ID=8941185

Family Applications (1)

Application Number Title Priority Date Filing Date
FR557879D Expired FR557879A (en) 1922-10-27 1922-10-27 Photoelectric device

Country Status (1)

Country Link
FR (1) FR557879A (en)

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