FR33981E - Lampe biplaque et bigrille - Google Patents

Lampe biplaque et bigrille

Info

Publication number
FR33981E
FR33981E FR33981DA FR33981E FR 33981 E FR33981 E FR 33981E FR 33981D A FR33981D A FR 33981DA FR 33981 E FR33981 E FR 33981E
Authority
FR
France
Prior art keywords
bigrille
biplate
lamp
bigrille 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
English (en)
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.)
IND DE EC ET DE Ets
Original Assignee
IND DE EC ET DE Ets
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 IND DE EC ET DE Ets filed Critical IND DE EC ET DE Ets
Application granted granted Critical
Publication of FR33981E publication Critical patent/FR33981E/fr
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
FR33981D 1927-08-10 1927-08-10 Lampe biplaque et bigrille Expired FR33981E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR33981T 1927-08-10

Publications (1)

Publication Number Publication Date
FR33981E true FR33981E (fr) 1929-04-29

Family

ID=8671595

Family Applications (1)

Application Number Title Priority Date Filing Date
FR33981D Expired FR33981E (fr) 1927-08-10 1927-08-10 Lampe biplaque et bigrille

Country Status (1)

Country Link
FR (1) FR33981E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852581C (de) * 1933-09-16 1952-10-16 Helmut Dipl-Ing Pitsch Mischroehre

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852581C (de) * 1933-09-16 1952-10-16 Helmut Dipl-Ing Pitsch Mischroehre

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