FR854541A - - Google Patents
Info
- Publication number
- FR854541A FR854541A FR854541DA FR854541A FR 854541 A FR854541 A FR 854541A FR 854541D A FR854541D A FR 854541DA FR 854541 A FR854541 A FR 854541A
- 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 OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR854541A true FR854541A (ko) | 1940-04-16 |
Family
ID=1555066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR854541D Expired FR854541A (ko) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR854541A (ko) |
-
0
- FR FR854541D patent/FR854541A/fr not_active Expired