FR886578A - Improvements made to electric discharge tubes or incandescent lamps - Google Patents

Improvements made to electric discharge tubes or incandescent lamps

Info

Publication number
FR886578A
FR886578A FR886578DA FR886578A FR 886578 A FR886578 A FR 886578A FR 886578D A FR886578D A FR 886578DA FR 886578 A FR886578 A FR 886578A
Authority
FR
France
Prior art keywords
electric discharge
improvements made
incandescent lamps
discharge tubes
tubes
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 FR886578A publication Critical patent/FR886578A/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)
FR886578D 1941-10-08 1942-10-06 Improvements made to electric discharge tubes or incandescent lamps Expired FR886578A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL886578X 1941-10-08

Publications (1)

Publication Number Publication Date
FR886578A true FR886578A (en) 1943-10-19

Family

ID=19853775

Family Applications (1)

Application Number Title Priority Date Filing Date
FR886578D Expired FR886578A (en) 1941-10-08 1942-10-06 Improvements made to electric discharge tubes or incandescent lamps

Country Status (1)

Country Link
FR (1) FR886578A (en)

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