FR722502A - Multiple lamp - Google Patents

Multiple lamp

Info

Publication number
FR722502A
FR722502A FR722502DA FR722502A FR 722502 A FR722502 A FR 722502A FR 722502D A FR722502D A FR 722502DA FR 722502 A FR722502 A FR 722502A
Authority
FR
France
Prior art keywords
multiple lamp
lamp
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
Manfred Von Ardenne
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 FR722502A publication Critical patent/FR722502A/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
FR722502D 1930-09-10 1931-09-07 Multiple lamp Expired FR722502A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1930A0063930 DE612928C (en) 1930-09-10 1930-09-10 Multiple tubes

Publications (1)

Publication Number Publication Date
FR722502A true FR722502A (en) 1932-03-17

Family

ID=6576483

Family Applications (1)

Application Number Title Priority Date Filing Date
FR722502D Expired FR722502A (en) 1930-09-10 1931-09-07 Multiple lamp

Country Status (2)

Country Link
DE (1) DE612928C (en)
FR (1) FR722502A (en)

Also Published As

Publication number Publication date
DE612928C (en) 1935-05-09

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