DE235216C - - Google Patents

Info

Publication number
DE235216C
DE235216C DENDAT235216D DE235216DA DE235216C DE 235216 C DE235216 C DE 235216C DE NDAT235216 D DENDAT235216 D DE NDAT235216D DE 235216D A DE235216D A DE 235216DA DE 235216 C DE235216 C DE 235216C
Authority
DE
Germany
Prior art keywords
carbonized
boron
thread
starting material
free
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.)
Active
Application number
DENDAT235216D
Other languages
German (de)
English (en)
Publication of DE235216C publication Critical patent/DE235216C/de
Active 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)
  • Glass Compositions (AREA)
DENDAT235216D Active DE235216C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE235216C true DE235216C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=495013

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT235216D Active DE235216C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE235216C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Similar Documents

Publication Publication Date Title
GB1496678A (en) Process for producing carbon fibres from mesophase pitch
DE235216C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US2030695A (en) Electric lamp
DE217781C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE201461C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE281015C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE221211C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US597172A (en) Mowsky
US1077827A (en) Process of treating tungsten.
GB190906936A (en) Improvements in Processes for Manufacturing Metal Filaments for Incandescent Electric Lamps.
DE236554C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US1023295A (en) Manufacture of metallic filaments for incandescent electric lamps.
US829568A (en) Incandescent-lamp filament and method of making the same.
US950067A (en) Manufacture of gas for illuminating, heating, or power purposes.
DE145457C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US1604544A (en) Special carbon for the starting of a voltaic arc with ultra violet rays
US896060A (en) Filament for electric incandescent lamps and process of making the same.
GB190715510A (en) Improved Process for the Manufacture of Illuminating Bodies for Electric Incandescence Lamps.
US1086428A (en) Manufacture of electric filaments.
DE393706C (de) Verfahren zur Erzeugung von Oxyden des Stickstoffs
DE950219C (de) Verfahren zum Einbringen von Leuchtstoffen in Glasgefaesse, insbesondere in elektrische Entladungsroehren
AT35700B (de) Verfahren zur Entfernung des Kohlenstoffs aus Rohfäden für die Herstellung von elektrischen Glühkörpern aus hochschmelzenden unedlen Metallen.
DE194653C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE493778C (de) Verfahren zur Herstellung von reinem Eisen
US1090111A (en) Manufacture of electric filaments.