FR669314A - Electric discharge tube - Google Patents

Electric discharge tube

Info

Publication number
FR669314A
FR669314A FR669314DA FR669314A FR 669314 A FR669314 A FR 669314A FR 669314D A FR669314D A FR 669314DA FR 669314 A FR669314 A FR 669314A
Authority
FR
France
Prior art keywords
electric discharge
discharge tube
tube
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
Priority claimed from GB1061328A external-priority patent/GB309733A/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR669314A publication Critical patent/FR669314A/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
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/92—Lamps with more than one main discharge path
FR669314D 1928-03-24 1929-02-07 Electric discharge tube Expired FR669314A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2056641X 1928-03-24
GB1061328A GB309733A (en) 1928-04-10 1928-04-10 Improvements in or relating to electric discharge tubes

Publications (1)

Publication Number Publication Date
FR669314A true FR669314A (en) 1929-11-14

Family

ID=31995722

Family Applications (1)

Application Number Title Priority Date Filing Date
FR669314D Expired FR669314A (en) 1928-03-24 1929-02-07 Electric discharge tube

Country Status (2)

Country Link
US (1) US2056641A (en)
FR (1) FR669314A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437365A (en) * 1938-10-03 1948-03-09 Albert G Thomas Annular electronic tube
US2425672A (en) * 1943-04-23 1947-08-12 George G Ellner Ray-emission means
US2480198A (en) * 1945-11-26 1949-08-30 Machlett Lab Inc Electrical discharge tube
NL144070C (en) * 1948-02-27
US2830016A (en) * 1952-09-26 1958-04-08 Exxon Research Engineering Co Apparatus and method for photochemical reaction of organic compounds

Also Published As

Publication number Publication date
US2056641A (en) 1936-10-06

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