SE391993B - Larmsystem omfattande en central och till denna anslutna abonnenter - Google Patents
Larmsystem omfattande en central och till denna anslutna abonnenterInfo
- Publication number
- SE391993B SE391993B SE7402133A SE7402133A SE391993B SE 391993 B SE391993 B SE 391993B SE 7402133 A SE7402133 A SE 7402133A SE 7402133 A SE7402133 A SE 7402133A SE 391993 B SE391993 B SE 391993B
- Authority
- SE
- Sweden
- Prior art keywords
- subscribed
- subscribers
- central
- system including
- alarm system
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/014—Alarm signalling to a central station with two-way communication, e.g. with signalling back
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7402133A SE391993B (sv) | 1974-02-19 | 1974-02-19 | Larmsystem omfattande en central och till denna anslutna abonnenter |
IT48203/75A IT1029755B (it) | 1974-02-19 | 1975-02-01 | Perfezionamento nei sistemi di allarme |
FI750401A FI750401A (de) | 1974-02-19 | 1975-02-13 | |
US05/549,868 US3991412A (en) | 1974-02-19 | 1975-02-14 | Multi-subscriber alarm system with central receiving and transmitting installation |
GB654575A GB1455527A (en) | 1974-02-19 | 1975-02-17 | Alarm system |
CH191475A CH582924A5 (de) | 1974-02-19 | 1975-02-17 | |
DE19752506830 DE2506830A1 (de) | 1974-02-19 | 1975-02-18 | Elektrische alarmanlage |
FR7505136A FR2261575A1 (de) | 1974-02-19 | 1975-02-19 | |
DK61975*#A DK61975A (de) | 1974-02-19 | 1975-02-19 | |
NL7501963A NL7501963A (nl) | 1974-02-19 | 1975-02-19 | Alarmstelsel. |
CA220,460A CA1057833A (en) | 1974-02-19 | 1975-02-19 | Multi-subscriber alarm system with central receiving and transmitting installation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7402133A SE391993B (sv) | 1974-02-19 | 1974-02-19 | Larmsystem omfattande en central och till denna anslutna abonnenter |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7402133L SE7402133L (de) | 1975-08-20 |
SE391993B true SE391993B (sv) | 1977-03-07 |
Family
ID=20320242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7402133A SE391993B (sv) | 1974-02-19 | 1974-02-19 | Larmsystem omfattande en central och till denna anslutna abonnenter |
Country Status (11)
Country | Link |
---|---|
US (1) | US3991412A (de) |
CA (1) | CA1057833A (de) |
CH (1) | CH582924A5 (de) |
DE (1) | DE2506830A1 (de) |
DK (1) | DK61975A (de) |
FI (1) | FI750401A (de) |
FR (1) | FR2261575A1 (de) |
GB (1) | GB1455527A (de) |
IT (1) | IT1029755B (de) |
NL (1) | NL7501963A (de) |
SE (1) | SE391993B (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4777488A (en) * | 1986-05-16 | 1988-10-11 | Cw Products, Inc. | Restaurant service request communications system |
BR9303182A (pt) * | 1993-08-31 | 1994-04-19 | Esca Telecomunicacoes | Terminal remoto de dados |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3430218A (en) * | 1965-09-13 | 1969-02-25 | Charles P Healey | Alarm reporting system |
US3707708A (en) * | 1970-12-16 | 1972-12-26 | Multra Guard Inc | Muting circuit for a security alarm system providing a sonic alert |
US3854127A (en) * | 1973-09-18 | 1974-12-10 | C Damon | Alarm system with automatic ringback |
-
1974
- 1974-02-19 SE SE7402133A patent/SE391993B/xx unknown
-
1975
- 1975-02-01 IT IT48203/75A patent/IT1029755B/it active
- 1975-02-13 FI FI750401A patent/FI750401A/fi not_active Application Discontinuation
- 1975-02-14 US US05/549,868 patent/US3991412A/en not_active Expired - Lifetime
- 1975-02-17 GB GB654575A patent/GB1455527A/en not_active Expired
- 1975-02-17 CH CH191475A patent/CH582924A5/xx not_active IP Right Cessation
- 1975-02-18 DE DE19752506830 patent/DE2506830A1/de not_active Withdrawn
- 1975-02-19 CA CA220,460A patent/CA1057833A/en not_active Expired
- 1975-02-19 FR FR7505136A patent/FR2261575A1/fr not_active Withdrawn
- 1975-02-19 NL NL7501963A patent/NL7501963A/xx not_active Application Discontinuation
- 1975-02-19 DK DK61975*#A patent/DK61975A/da unknown
Also Published As
Publication number | Publication date |
---|---|
DE2506830A1 (de) | 1975-08-21 |
FR2261575A1 (de) | 1975-09-12 |
NL7501963A (nl) | 1975-08-21 |
SE7402133L (de) | 1975-08-20 |
US3991412A (en) | 1976-11-09 |
CH582924A5 (de) | 1976-12-15 |
IT1029755B (it) | 1979-03-20 |
CA1057833A (en) | 1979-07-03 |
DK61975A (de) | 1975-10-20 |
FI750401A (de) | 1975-08-20 |
GB1455527A (en) | 1976-11-10 |
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