DE271993C - - Google Patents
Info
- Publication number
- DE271993C DE271993C DENDAT271993D DE271993DC DE271993C DE 271993 C DE271993 C DE 271993C DE NDAT271993 D DENDAT271993 D DE NDAT271993D DE 271993D C DE271993D C DE 271993DC DE 271993 C DE271993 C DE 271993C
- Authority
- DE
- Germany
- Prior art keywords
- tungstates
- chromates
- calm
- fluorides
- coal
- 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
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims 1
- 239000003245 coal Substances 0.000 claims 1
- 150000002222 fluorine compounds Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B31/00—Electric arc lamps
- H05B31/02—Details
- H05B31/06—Electrodes
- H05B31/065—Electrodes for flame arc lamps
Landscapes
- Discharge Lamp (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE271993C true DE271993C (en:Method) |
Family
ID=528600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT271993D Active DE271993C (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE271993C (en:Method) |
-
0
- DE DENDAT271993D patent/DE271993C/de active Active
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