METHOD AND APPARATUS FOR SELECTIVELY DETECTING OBJECTS - Patent 0424371

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EP 0 424 371 A1

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(43)	Date of publication:
	02.05.1991 Bulletin 1991/18

(21)	Application number: 88905971.0

(22)	Date of filing: 08.07.1988

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International Patent Classification (IPC):

G01S 7/ 41^{( . )}
G01S 13/ 06^{( . )}
G01V 3/ 12^{( . )}

G01S 13/ 04^{( . )}
G01S 13/ 88^{( . )}

(86)	International application number:
	PCT/GB1988/000556

(87)	International publication number:
	WO 1990/000749 (25.01.1990 Gazette 1990/03)

(84)	Designated Contracting States:
	AT BE CH DE FR GB IT LI LU NL SE

(71)	Applicant: ZETETIC INTERNATIONAL LIMITED
	Battersea, London SW11 3SA (GB)

(72)	Inventors:
	JENNINGS, Christopher, Sorrel London SW17 8JT (GB) CROSS, Thomas, Edward Wollaton Nottingham NG8 1GG (GB)

(74)	Representative: Crawford, Andrew Birkby
	A.A. THORNTON & CO. Northumberland House 303-306 High Holborn London WC2A 1AY London WC2A 1AY (GB)

(54)	METHOD AND APPARATUS FOR SELECTIVELY DETECTING OBJECTS