BE481770A - - Google Patents
Info
- Publication number
- BE481770A BE481770A BE481770DA BE481770A BE 481770 A BE481770 A BE 481770A BE 481770D A BE481770D A BE 481770DA BE 481770 A BE481770 A BE 481770A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US730069A US2439502A (en) | 1947-02-21 | 1947-02-21 | Automatic fire alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE481770A true BE481770A (pt) |
Family
ID=24933784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE481770D BE481770A (pt) | 1947-02-21 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2439502A (pt) |
| BE (1) | BE481770A (pt) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2632155A (en) * | 1947-11-07 | 1953-03-17 | Anthony H Lamb | Combination radio and fire alarm |
| US2615080A (en) * | 1948-12-02 | 1952-10-21 | Byron Jackson Co | Sound indicator and fluid level indicator for wells |
| US2559372A (en) * | 1948-12-10 | 1951-07-03 | Howard A Rike | Thermostatic switch |
| US2605342A (en) * | 1948-12-10 | 1952-07-29 | Sherman D Spurling | Fire alarm system |
| US2642511A (en) * | 1949-03-21 | 1953-06-16 | Howard A Rike | Thermal-sensitive actuator for fire alarms |
| US2648059A (en) * | 1949-08-25 | 1953-08-04 | Kaiser Frazer Corp | Electrical indicating means |
| US2696524A (en) * | 1949-12-23 | 1954-12-07 | Jr Ross D Huntington | Automatic fire and burglar alarm system for telephone subscribers |
| US2704814A (en) * | 1951-07-23 | 1955-03-22 | White Jesse Spruce | Circuit makers and breakers for signal or alarm circuits |
| US3801971A (en) * | 1971-12-17 | 1974-04-02 | J Stendig | Telephone alarm system |
| US3786502A (en) * | 1971-12-17 | 1974-01-15 | J Stendig | Security system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US724093A (en) * | 1902-02-14 | 1903-03-31 | Benjamin O Fox | Combined telephone, signal, burglar, and fire alarm. |
| US1685853A (en) * | 1926-08-17 | 1928-10-02 | Amedee S Mazzur | Signal system |
| US2040309A (en) * | 1933-06-02 | 1936-05-12 | Hayden Kenneth Le Roy | Protective signal system |
-
0
- BE BE481770D patent/BE481770A/xx unknown
-
1947
- 1947-02-21 US US730069A patent/US2439502A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2439502A (en) | 1948-04-13 |