(19)
(11)
EP 0 664 918 A1
(12)
(43)
Date of publication:
02.08.1995
Bulletin 1995/31
(21)
Application number:
93922994.0
(22)
Date of filing:
14.10.1993
(51)
International Patent Classification (IPC):
G08B
3/
06
( . )
G10K
9/
04
( . )
(86)
International application number:
PCT/GB1993/002120
(87)
International publication number:
WO 1994/009479
(
28.04.1994
Gazette 1994/10)
(84)
Designated Contracting States:
DE FR IT NL
(30)
Priority:
15.10.1992
GB 19920021623
(71)
Applicant:
WORTHINGTON, John Alfred
Ware, Hertfordshire SG11 1JF (GB)
(72)
Inventor:
WORTHINGTON, John Alfred
Ware, Hertfordshire SG11 1JF (GB)
(74)
Representative:
Hooper, John Peter Lindesay
5 Haslingfield Road
Harlton, Cambridge CB3 7ER
Harlton, Cambridge CB3 7ER (GB)
(54)
ALARM SYSTEMS