FR638184A - Lampe trigrille pour t. s. f. - Google Patents

Lampe trigrille pour t. s. f.

Info

Publication number
FR638184A
FR638184A FR638184DA FR638184A FR 638184 A FR638184 A FR 638184A FR 638184D A FR638184D A FR 638184DA FR 638184 A FR638184 A FR 638184A
Authority
FR
France
Prior art keywords
trigrille
lamp
trigrille 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)
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 FR638184A publication Critical patent/FR638184A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
FR638184D 1927-07-25 1927-07-25 Lampe trigrille pour t. s. f. Expired FR638184A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR638184T 1927-07-25

Publications (1)

Publication Number Publication Date
FR638184A true FR638184A (fr) 1928-05-18

Family

ID=8995842

Family Applications (1)

Application Number Title Priority Date Filing Date
FR638184D Expired FR638184A (fr) 1927-07-25 1927-07-25 Lampe trigrille pour t. s. f.

Country Status (1)

Country Link
FR (1) FR638184A (fr)

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