FR507331A - - Google Patents
Info
- Publication number
- FR507331A FR507331A FR507331507331A FR507331DA FR507331A FR 507331 A FR507331 A FR 507331A FR 507331507331 A FR507331507331 A FR 507331507331A FR 507331D A FR507331D A FR 507331DA FR 507331 A FR507331 A FR 507331A
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR507331T | 1919-12-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR507331A true FR507331A (ja) | 1920-09-10 |
Family
ID=1535722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR507331507331A Expired FR507331A (ja) | 1919-12-12 | 1919-12-12 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR507331A (ja) |
-
1919
- 1919-12-12 FR FR507331507331A patent/FR507331A/fr not_active Expired