FR37816E - Improvements to luminescence lamps - Google Patents

Improvements to luminescence lamps

Info

Publication number
FR37816E
FR37816E FR37816DA FR37816E FR 37816 E FR37816 E FR 37816E FR 37816D A FR37816D A FR 37816DA FR 37816 E FR37816 E FR 37816E
Authority
FR
France
Prior art keywords
luminescence lamps
luminescence
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)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR37816E publication Critical patent/FR37816E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
FR37816D 1929-12-18 1929-12-18 Improvements to luminescence lamps Expired FR37816E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR37816T 1929-12-18

Publications (1)

Publication Number Publication Date
FR37816E true FR37816E (en) 1931-01-24

Family

ID=8674398

Family Applications (1)

Application Number Title Priority Date Filing Date
FR37816D Expired FR37816E (en) 1929-12-18 1929-12-18 Improvements to luminescence lamps

Country Status (1)

Country Link
FR (1) FR37816E (en)

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