NL7501963A - Alarmstelsel. - Google Patents

Alarmstelsel.

Info

Publication number: NL7501963A
Authority: NL; Netherlands
Prior art keywords: alarm system; alarm
Prior art date: 1974-02-19

Application number

NL7501963A

Other languages

English (en)

Original Assignee

Arne Verner Hillberg

Priority date (The priority date 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 date listed.)

1974-02-19

Filing date

1975-02-19

Publication date

1975-08-21

1975-02-19 Application filed by Arne Verner Hillberg filed Critical Arne Verner Hillberg

1975-08-21 Publication of NL7501963A publication Critical patent/NL7501963A/nl

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)

NL7501963A 1974-02-19 1975-02-19 Alarmstelsel. NL7501963A (nl)

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 (1)

Publication Number	Publication Date
NL7501963A true NL7501963A (nl)	1975-08-21

Family

ID=20320242

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7501963A NL7501963A (nl)	1974-02-19	1975-02-19	Alarmstelsel.

Country Status (11)

Country	Link
US (1)	US3991412A (nl)
CA (1)	CA1057833A (nl)
CH (1)	CH582924A5 (nl)
DE (1)	DE2506830A1 (nl)
DK (1)	DK61975A (nl)
FI (1)	FI750401A (nl)
FR (1)	FR2261575A1 (nl)
GB (1)	GB1455527A (nl)
IT (1)	IT1029755B (nl)
NL (1)	NL7501963A (nl)
SE (1)	SE391993B (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 CH CH191475A patent/CH582924A5/xx not_active IP Right Cessation
- 1975-02-17 GB GB654575A patent/GB1455527A/en not_active Expired
- 1975-02-18 DE DE19752506830 patent/DE2506830A1/de not_active Withdrawn
- 1975-02-19 NL NL7501963A patent/NL7501963A/nl not_active Application Discontinuation
- 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 DK DK61975*#A patent/DK61975A/da unknown

Also Published As

Publication number	Publication date
CA1057833A (en)	1979-07-03
DK61975A (nl)	1975-10-20
FI750401A (nl)	1975-08-20
SE7402133L (nl)	1975-08-20
DE2506830A1 (de)	1975-08-21
SE391993B (sv)	1977-03-07
FR2261575A1 (nl)	1975-09-12
IT1029755B (it)	1979-03-20
US3991412A (en)	1976-11-09
GB1455527A (en)	1976-11-10
CH582924A5 (nl)	1976-12-15

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Legal Events

Date	Code	Title	Description
1982-04-01	BV	The patent application has lapsed