FR638185A - Improvements in t lamps. s. f. - Google Patents

Improvements in t lamps. s. f.

Info

Publication number
FR638185A
FR638185A FR638185DA FR638185A FR 638185 A FR638185 A FR 638185A FR 638185D A FR638185D A FR 638185DA FR 638185 A FR638185 A FR 638185A
Authority
FR
France
Prior art keywords
lamps
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
Conrad Borghi
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.)
VATEA DE RADIO ET D ELECTRICIT
Original Assignee
VATEA DE RADIO ET D ELECTRICIT
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 VATEA DE RADIO ET D ELECTRICIT filed Critical VATEA DE RADIO ET D ELECTRICIT
Application granted granted Critical
Publication of FR638185A publication Critical patent/FR638185A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/20—Tubes with more than one discharge path; Multiple tubes, e.g. double diode, triode-hexode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/003—Tubes with plural electrode systems
FR638185D 1927-07-25 1927-07-25 Improvements in t lamps. s. f. Expired FR638185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR638185T 1927-07-25

Publications (1)

Publication Number Publication Date
FR638185A true FR638185A (en) 1928-05-18

Family

ID=8995843

Family Applications (1)

Application Number Title Priority Date Filing Date
FR638185D Expired FR638185A (en) 1927-07-25 1927-07-25 Improvements in t lamps. s. f.

Country Status (1)

Country Link
FR (1) FR638185A (en)

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