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 (enExample)

Publications (1)

Publication Number Publication Date
DE235216C true DE235216C (enExample)

Family

ID=495013

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT235216D Active DE235216C (enExample)

Country Status (1)

Country Link
DE (1) DE235216C (enExample)

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