FR902507A - Discharge tube or incandescent lamp - Google Patents

Discharge tube or incandescent lamp

Info

Publication number
FR902507A
FR902507A FR902507DA FR902507A FR 902507 A FR902507 A FR 902507A FR 902507D A FR902507D A FR 902507DA FR 902507 A FR902507 A FR 902507A
Authority
FR
France
Prior art keywords
discharge tube
incandescent lamp
incandescent
lamp
discharge
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR902507A publication Critical patent/FR902507A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/002—Chemical composition and manufacture chemical
FR902507D 1943-03-10 1944-03-08 Discharge tube or incandescent lamp Expired FR902507A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL902507X 1943-03-10

Publications (1)

Publication Number Publication Date
FR902507A true FR902507A (en) 1945-09-03

Family

ID=19858418

Family Applications (1)

Application Number Title Priority Date Filing Date
FR902507D Expired FR902507A (en) 1943-03-10 1944-03-08 Discharge tube or incandescent lamp

Country Status (1)

Country Link
FR (1) FR902507A (en)

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