FR696846A - Electric discharge tubes - Google Patents

Electric discharge tubes

Info

Publication number
FR696846A
FR696846A FR696846DA FR696846A FR 696846 A FR696846 A FR 696846A FR 696846D A FR696846D A FR 696846DA FR 696846 A FR696846 A FR 696846A
Authority
FR
France
Prior art keywords
electric discharge
discharge tubes
tubes
electric
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 FR696846A publication Critical patent/FR696846A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
    • H01J61/20—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
FR696846D 1929-06-08 1930-06-07 Electric discharge tubes Expired FR696846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL696846X 1929-06-08

Publications (1)

Publication Number Publication Date
FR696846A true FR696846A (en) 1931-01-07

Family

ID=19808899

Family Applications (1)

Application Number Title Priority Date Filing Date
FR696846D Expired FR696846A (en) 1929-06-08 1930-06-07 Electric discharge tubes

Country Status (1)

Country Link
FR (1) FR696846A (en)

Similar Documents

Publication Publication Date Title
FR674313A (en) Electric discharge tube
FR686234A (en) Electric discharge tube
FR686414A (en) Electric discharge tube
FR669314A (en) Electric discharge tube
FR649051A (en) Electric discharge tube
FR47656E (en) Electric discharge tube
FR45132E (en) Electric discharge tube
FR668025A (en) Electric discharge tube
FR685521A (en) Electric discharge tube
FR717583A (en) Electric discharge tube
FR723374A (en) Electric discharge tube
FR672469A (en) Electric discharge tubes
FR727891A (en) Electric discharge tube
FR696846A (en) Electric discharge tubes
FR699861A (en) Electric discharge tubes
FR679499A (en) Electric discharge tubes
FR734217A (en) Electric discharge tube
FR683222A (en) Electric discharge tube
FR686623A (en) Electric discharge tube
FR690690A (en) Electric discharge tube
FR697232A (en) Electric discharge tube
FR665991A (en) Electric discharge tube
FR674565A (en) Electric discharge tube
FR642557A (en) Electric discharge tube
FR658896A (en) Electric discharge tube