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FR551712A - Improvements in the manufacture of filaments for electric incandescent lamps - Google Patents

Improvements in the manufacture of filaments for electric incandescent lamps

Info

Publication number
FR551712A
FR551712A FR551712DA FR551712A FR 551712 A FR551712 A FR 551712A FR 551712D A FR551712D A FR 551712DA FR 551712 A FR551712 A FR 551712A
Authority
FR
France
Prior art keywords
filaments
manufacture
incandescent lamps
electric incandescent
electric
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
Otto Oberlander
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 FR551712A publication Critical patent/FR551712A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/02—Manufacture of incandescent bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
FR551712D 1921-05-20 1922-05-19 Improvements in the manufacture of filaments for electric incandescent lamps Expired FR551712A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1414421A GB184291A (en) 1921-05-20 1921-05-20 Improvements in incandescent electric lamps and the like

Publications (1)

Publication Number Publication Date
FR551712A true FR551712A (en) 1923-04-12

Family

ID=10035811

Family Applications (1)

Application Number Title Priority Date Filing Date
FR551712D Expired FR551712A (en) 1921-05-20 1922-05-19 Improvements in the manufacture of filaments for electric incandescent lamps

Country Status (3)

Country Link
FR (1) FR551712A (en)
GB (1) GB184291A (en)
NL (1) NL21898B (en)

Also Published As

Publication number Publication date
GB184291A (en) 1922-08-17
NL21898B (en)

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