FR65834E - - Google Patents
Info
- Publication number
- FR65834E FR65834E FR65834DA FR65834E FR 65834 E FR65834 E FR 65834E FR 65834D A FR65834D A FR 65834DA FR 65834 E FR65834 E FR 65834E
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied
- G08B5/40—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied using smoke, fire or coloured gases
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR65834E true FR65834E (2) | 1956-03-21 |
Family
ID=1363923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR65834D Expired FR65834E (2) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR65834E (2) |
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0
- FR FR65834D patent/FR65834E/fr not_active Expired