DE219933C - - Google Patents

Info

Publication number
DE219933C
DE219933C DENDAT219933D DE219933DA DE219933C DE 219933 C DE219933 C DE 219933C DE NDAT219933 D DENDAT219933 D DE NDAT219933D DE 219933D A DE219933D A DE 219933DA DE 219933 C DE219933 C DE 219933C
Authority
DE
Germany
Prior art keywords
nitrogen
compounds
hydrogen
carbon filament
filament lamp
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
DENDAT219933D
Other languages
German (de)
English (en)
Publication of DE219933C publication Critical patent/DE219933C/de
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering

Landscapes

  • Carbon And Carbon Compounds (AREA)
DENDAT219933D Active DE219933C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE219933C true DE219933C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=481021

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT219933D Active DE219933C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE219933C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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