FR684334A - Improvements to electronic discharge devices - Google Patents

Improvements to electronic discharge devices

Info

Publication number
FR684334A
FR684334A FR684334DA FR684334A FR 684334 A FR684334 A FR 684334A FR 684334D A FR684334D A FR 684334DA FR 684334 A FR684334 A FR 684334A
Authority
FR
France
Prior art keywords
discharge devices
electronic discharge
electronic
devices
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR684334A publication Critical patent/FR684334A/en
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
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR684334D 1928-11-16 1929-11-04 Improvements to electronic discharge devices Expired FR684334A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB684334X 1928-11-16

Publications (1)

Publication Number Publication Date
FR684334A true FR684334A (en) 1930-06-24

Family

ID=10492694

Family Applications (1)

Application Number Title Priority Date Filing Date
FR684334D Expired FR684334A (en) 1928-11-16 1929-11-04 Improvements to electronic discharge devices

Country Status (1)

Country Link
FR (1) FR684334A (en)

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