FR888921A - Method and device for closing the tubes of vacuum lamps - Google Patents

Method and device for closing the tubes of vacuum lamps

Info

Publication number
FR888921A
FR888921A FR888921DA FR888921A FR 888921 A FR888921 A FR 888921A FR 888921D A FR888921D A FR 888921DA FR 888921 A FR888921 A FR 888921A
Authority
FR
France
Prior art keywords
tubes
closing
vacuum lamps
lamps
vacuum
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)
Inventor
Maurice Descarsin
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 FR888921A publication Critical patent/FR888921A/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
    • H01J9/40—Closing vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR888921D 1942-08-14 1942-08-14 Method and device for closing the tubes of vacuum lamps Expired FR888921A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR888921T 1942-08-14

Publications (1)

Publication Number Publication Date
FR888921A true FR888921A (en) 1943-12-27

Family

ID=9376965

Family Applications (1)

Application Number Title Priority Date Filing Date
FR888921D Expired FR888921A (en) 1942-08-14 1942-08-14 Method and device for closing the tubes of vacuum lamps

Country Status (1)

Country Link
FR (1) FR888921A (en)

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