FR591965A - Improvements made to the manufacture of t lamps. s. f. and thermo-ionic relays - Google Patents

Improvements made to the manufacture of t lamps. s. f. and thermo-ionic relays

Info

Publication number
FR591965A
FR591965A FR591965DA FR591965A FR 591965 A FR591965 A FR 591965A FR 591965D A FR591965D A FR 591965DA FR 591965 A FR591965 A FR 591965A
Authority
FR
France
Prior art keywords
relays
thermo
lamps
ionic
manufacture
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
Georges Fayol
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 FR591965A publication Critical patent/FR591965A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/30—Cold cathodes, e.g. field-emissive cathode
FR591965D 1924-03-11 1924-03-11 Improvements made to the manufacture of t lamps. s. f. and thermo-ionic relays Expired FR591965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR591965T 1924-03-11

Publications (1)

Publication Number Publication Date
FR591965A true FR591965A (en) 1925-07-22

Family

ID=8964470

Family Applications (1)

Application Number Title Priority Date Filing Date
FR591965D Expired FR591965A (en) 1924-03-11 1924-03-11 Improvements made to the manufacture of t lamps. s. f. and thermo-ionic relays

Country Status (1)

Country Link
FR (1) FR591965A (en)

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