FR641455A - Incandescent cathode lamp - Google Patents

Incandescent cathode lamp

Info

Publication number
FR641455A
FR641455A FR641455DA FR641455A FR 641455 A FR641455 A FR 641455A FR 641455D A FR641455D A FR 641455DA FR 641455 A FR641455 A FR 641455A
Authority
FR
France
Prior art keywords
cathode lamp
incandescent cathode
incandescent
lamp
cathode
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
Karl Burk
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 FR641455A publication Critical patent/FR641455A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
FR641455D 1926-09-09 1927-09-08 Incandescent cathode lamp Expired FR641455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH641455X 1926-09-09

Publications (1)

Publication Number Publication Date
FR641455A true FR641455A (en) 1928-08-04

Family

ID=4525455

Family Applications (1)

Application Number Title Priority Date Filing Date
FR641455D Expired FR641455A (en) 1926-09-09 1927-09-08 Incandescent cathode lamp

Country Status (1)

Country Link
FR (1) FR641455A (en)

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