FR974849A - Discharge tube and its manufacturing process - Google Patents

Discharge tube and its manufacturing process

Info

Publication number
FR974849A
FR974849A FR974849DA FR974849A FR 974849 A FR974849 A FR 974849A FR 974849D A FR974849D A FR 974849DA FR 974849 A FR974849 A FR 974849A
Authority
FR
France
Prior art keywords
manufacturing process
discharge tube
discharge
tube
manufacturing
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 FR974849A publication Critical patent/FR974849A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/36—Tubes with flat electrodes, e.g. disc electrode
FR974849D 1947-11-15 1948-11-12 Discharge tube and its manufacturing process Expired FR974849A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL72044X 1947-11-15

Publications (1)

Publication Number Publication Date
FR974849A true FR974849A (en) 1951-02-26

Family

ID=19757396

Family Applications (1)

Application Number Title Priority Date Filing Date
FR974849D Expired FR974849A (en) 1947-11-15 1948-11-12 Discharge tube and its manufacturing process

Country Status (6)

Country Link
US (1) US2609518A (en)
CH (1) CH273524A (en)
DE (1) DE818381C (en)
DK (1) DK72044C (en)
FR (1) FR974849A (en)
GB (1) GB648046A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2859371A (en) * 1954-04-09 1958-11-04 Gen Electric Electron discharge device structure
US3050651A (en) * 1956-09-04 1962-08-21 Gen Electric High temperature electron discharge device and apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2227017A (en) * 1936-03-12 1940-12-31 Loewe Radio Inc Hot cathode for cathode ray tubes
US2174853A (en) * 1937-08-26 1939-10-03 Hygrade Sylvania Corp Electron gun structure and method of assembly thereof
US2225465A (en) * 1938-11-18 1940-12-17 Lorenz C Ag Electron discharge device
US2411184A (en) * 1942-07-02 1946-11-19 Gen Electric Fabrication of discharge devices
US2458693A (en) * 1946-01-25 1949-01-11 Eitel Mccullough Inc Electron tube
US2446765A (en) * 1946-09-24 1948-08-10 Gen Electric Electrical discharge tube

Also Published As

Publication number Publication date
US2609518A (en) 1952-09-02
CH273524A (en) 1951-02-15
DK72044C (en) 1951-01-22
GB648046A (en) 1950-12-28
DE818381C (en) 1952-03-27

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