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
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 1
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 229910052796 boron Inorganic materials 0.000 claims 1
- 229910017464 nitrogen compound Inorganic materials 0.000 claims 1
- 150000002830 nitrogen compounds Chemical class 0.000 claims 1
- 239000007858 starting material Substances 0.000 claims 1
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE235216C true DE235216C (cs) |
Family
ID=495013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT235216D Active DE235216C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE235216C (cs) |
-
0
- DE DENDAT235216D patent/DE235216C/de active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1496678A (en) | Process for producing carbon fibres from mesophase pitch | |
| DE235216C (cs) | ||
| US2030695A (en) | Electric lamp | |
| DE217781C (cs) | ||
| US912245A (en) | Solder for incandescent-lamp filaments. | |
| DE201461C (cs) | ||
| DE281015C (cs) | ||
| DE221211C (cs) | ||
| US597172A (en) | Mowsky | |
| US1077827A (en) | Process of treating tungsten. | |
| GB190906936A (en) | Improvements in Processes for Manufacturing Metal Filaments for Incandescent Electric Lamps. | |
| DE236554C (cs) | ||
| 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. | |
| US590514A (en) | Process of producing metallic carbids | |
| US687079A (en) | Production of artificial stone from limestone. | |
| 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 | |
| AT35700B (de) | Verfahren zur Entfernung des Kohlenstoffs aus Rohfäden für die Herstellung von elektrischen Glühkörpern aus hochschmelzenden unedlen Metallen. | |
| DE194653C (cs) | ||
| DE493778C (de) | Verfahren zur Herstellung von reinem Eisen |