FR1559488A - - Google Patents

Info

Publication number
FR1559488A
FR1559488A FR1559488DA FR1559488A FR 1559488 A FR1559488 A FR 1559488A FR 1559488D A FR1559488D A FR 1559488DA FR 1559488 A FR1559488 A FR 1559488A
Authority
FR
France
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
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 filed Critical
Application granted granted Critical
Publication of FR1559488A publication Critical patent/FR1559488A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
FR1559488D 1967-04-07 1968-04-05 Expired FR1559488A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1600667A GB1160823A (en) 1967-04-07 1967-04-07 Improvements in or relating to Velocity Modulated Electron Beam Tubes

Publications (1)

Publication Number Publication Date
FR1559488A true FR1559488A (fr) 1969-03-07

Family

ID=10069494

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1559488D Expired FR1559488A (fr) 1967-04-07 1968-04-05

Country Status (4)

Country Link
CH (1) CH469352A (fr)
FR (1) FR1559488A (fr)
GB (1) GB1160823A (fr)
NL (1) NL6804872A (fr)

Also Published As

Publication number Publication date
CH469352A (fr) 1969-02-28
NL6804872A (fr) 1968-10-08
GB1160823A (en) 1969-08-06

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Legal Events

Date Code Title Description
ST Notification of lapse
CD Change of name or company name