FR1052203A - - Google Patents
Info
- Publication number
- FR1052203A FR1052203A FR1052203DA FR1052203A FR 1052203 A FR1052203 A FR 1052203A FR 1052203D A FR1052203D A FR 1052203DA FR 1052203 A FR1052203 A FR 1052203A
- Authority
- FR
- France
- 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.)
- Expired
Links
Classifications
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- 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
- F21K5/023—Ignition devices in photo flash bulbs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1052203A true FR1052203A (xx) | 1954-01-22 |
Family
ID=1567628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1052203D Expired FR1052203A (xx) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1052203A (xx) |
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0
- FR FR1052203D patent/FR1052203A/fr not_active Expired