FR852078A - Electric discharge tubes - Google Patents

Electric discharge tubes

Info

Publication number
FR852078A
FR852078A FR852078DA FR852078A FR 852078 A FR852078 A FR 852078A FR 852078D A FR852078D A FR 852078DA FR 852078 A FR852078 A FR 852078A
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 FR852078A publication Critical patent/FR852078A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
FR852078D 1938-03-25 1939-03-24 Electric discharge tubes Expired FR852078A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP2096D DE1080231B (en) 1938-03-25 1938-03-25 Electric discharge tubes with an electrode set which contains a secondary electron emission electrode

Publications (1)

Publication Number Publication Date
FR852078A true FR852078A (en) 1940-01-23

Family

ID=7357732

Family Applications (1)

Application Number Title Priority Date Filing Date
FR852078D Expired FR852078A (en) 1938-03-25 1939-03-24 Electric discharge tubes

Country Status (6)

Country Link
BE (1) BE433417A (en)
CH (1) CH209456A (en)
DE (1) DE1080231B (en)
DK (1) DK59049C (en)
FR (1) FR852078A (en)
GB (1) GB508778A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530743A (en) * 1942-04-17 1950-11-21 Hartford Nat Bank & Trust Co Secondary emissive electric discharge tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530743A (en) * 1942-04-17 1950-11-21 Hartford Nat Bank & Trust Co Secondary emissive electric discharge tube

Also Published As

Publication number Publication date
DK59049C (en) 1941-09-22
BE433417A (en)
DE1080231B (en) 1960-04-21
GB508778A (en) 1939-07-05
CH209456A (en) 1940-04-15

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