FR632410A - - Google Patents
Info
- Publication number
- FR632410A FR632410A FR632410DA FR632410A FR 632410 A FR632410 A FR 632410A FR 632410D A FR632410D A FR 632410DA FR 632410 A FR632410 A FR 632410A
- 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
-
- 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
- H05B31/003—Electric arc lamps of a special type
- H05B31/0039—Projectors, the construction of which depends upon the presence of the arc
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR632410A true FR632410A (pm) | 1928-01-09 |
Family
ID=1541514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR632410D Expired FR632410A (pm) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR632410A (pm) |
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0
- FR FR632410D patent/FR632410A/fr not_active Expired