FR1555931A - - Google Patents

Info

Publication number
FR1555931A
FR1555931A FR1555931DA FR1555931A FR 1555931 A FR1555931 A FR 1555931A FR 1555931D A FR1555931D A FR 1555931DA FR 1555931 A FR1555931 A FR 1555931A
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 FR1555931A publication Critical patent/FR1555931A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Solid Thermionic Cathode (AREA)
FR1555931D 1967-01-25 1968-01-25 Expired FR1555931A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6701138A NL6701138A (fr) 1967-01-25 1967-01-25

Publications (1)

Publication Number Publication Date
FR1555931A true FR1555931A (fr) 1969-01-31

Family

ID=19799112

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1555931D Expired FR1555931A (fr) 1967-01-25 1968-01-25

Country Status (10)

Country Link
US (1) US3574910A (fr)
AT (1) AT276575B (fr)
BE (1) BE709773A (fr)
CH (1) CH470077A (fr)
DK (1) DK118299B (fr)
ES (1) ES349611A1 (fr)
FR (1) FR1555931A (fr)
GB (1) GB1159233A (fr)
NL (1) NL6701138A (fr)
SE (1) SE325341B (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117249A (en) * 1960-02-16 1964-01-07 Sperry Rand Corp Embedded heater cathode
NL274464A (fr) * 1961-02-07
AT265448B (de) * 1963-04-30 1968-10-10 Matsushita Electronics Corp Verfahren zur Herstellung flacher Kathoden für Elektronenröhren
DE1250013B (fr) * 1963-10-24

Also Published As

Publication number Publication date
CH470077A (de) 1969-03-15
BE709773A (fr) 1968-07-23
NL6701138A (fr) 1968-07-26
ES349611A1 (es) 1969-10-01
DE1614307A1 (de) 1970-07-09
US3574910A (en) 1971-04-13
SE325341B (fr) 1970-06-29
AT276575B (de) 1969-11-25
DE1614307B2 (de) 1976-01-02
GB1159233A (en) 1969-07-23
DK118299B (da) 1970-08-03

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Legal Events

Date Code Title Description
ST Notification of lapse