BE494289A - - Google Patents
Info
- Publication number
- BE494289A BE494289A BE494289DA BE494289A BE 494289 A BE494289 A BE 494289A BE 494289D A BE494289D A BE 494289DA BE 494289 A BE494289 A BE 494289A
- Authority
- BE
- Belgium
- Prior art keywords
- varnish
- bulb
- layer
- layers
- externally
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
- F21K5/02—Light sources using charges of combustible material, e.g. illuminating flash devices ignited in a non-disrupting container, e.g. photo-flash bulb
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE494289A true BE494289A (enExample) |
Family
ID=138073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE494289D BE494289A (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE494289A (enExample) |
-
0
- BE BE494289D patent/BE494289A/fr unknown
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