DE198643C - - Google Patents
Info
- Publication number
- DE198643C DE198643C DENDAT198643D DE198643DA DE198643C DE 198643 C DE198643 C DE 198643C DE NDAT198643 D DENDAT198643 D DE NDAT198643D DE 198643D A DE198643D A DE 198643DA DE 198643 C DE198643 C DE 198643C
- Authority
- DE
- Germany
- Prior art keywords
- filament
- safety
- normal
- lamp
- normal filament
- 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
- 241000191291 Abies alba Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE198643C true DE198643C (cs) |
Family
ID=461424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT198643D Active DE198643C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE198643C (cs) |
-
0
- DE DENDAT198643D patent/DE198643C/de active Active
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