FR582801A - Enhancements to burglar alarm systems - Google Patents
Enhancements to burglar alarm systemsInfo
- Publication number
- FR582801A FR582801A FR582801DA FR582801A FR 582801 A FR582801 A FR 582801A FR 582801D A FR582801D A FR 582801DA FR 582801 A FR582801 A FR 582801A
- Authority
- FR
- France
- Prior art keywords
- enhancements
- burglar alarm
- alarm systems
- systems
- burglar
- Prior art date
- 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
- G08B15/00—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US685662A US1505760A (en) | 1924-01-11 | 1924-01-11 | Burglar alarm |
Publications (1)
Publication Number | Publication Date |
---|---|
FR582801A true FR582801A (en) | 1924-12-29 |
Family
ID=24753166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR582801D Expired FR582801A (en) | 1924-01-11 | 1924-06-18 | Enhancements to burglar alarm systems |
Country Status (2)
Country | Link |
---|---|
US (1) | US1505760A (en) |
FR (1) | FR582801A (en) |
-
1924
- 1924-01-11 US US685662A patent/US1505760A/en not_active Expired - Lifetime
- 1924-06-18 FR FR582801D patent/FR582801A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1505760A (en) | 1924-08-19 |
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