(19)
(11)
EP 0 229 806 A1
(12)
(43)
Date of publication:
29.07.1987
Bulletin 1987/31
(21)
Application number:
86904233.0
(22)
Date of filing:
13.06.1986
(51)
International Patent Classification (IPC):
G01S
7/
02
( . )
G01S
13/
42
( . )
(86)
International application number:
PCT/GB1986/000347
(87)
International publication number:
WO 1986/007467
(
18.12.1986
Gazette 1986/27)
(84)
Designated Contracting States:
DE FR IT NL
(30)
Priority:
13.06.1985
GB 19850015026
(71)
Applicant:
PLESSEY OVERSEAS LIMITED
Ilford Essex IG1 4AQ (GB)
(72)
Inventor:
MOTKIN, David, Louis
Newport Isle of Wight PO30 1AA (GB)
(74)
Representative:
Sorenti, Gino
Intellectual Property Department The Plessey Company plc 2-60 Vicarage Lane
Ilford Essex IG1 4AQ
Ilford Essex IG1 4AQ (GB)
(54)
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