(19)

(11)

EP 0 028 611 A1

(12)

(43) Date of publication: 20.05.1981 Bulletin 1981/20 (21) Application number: 80900782.0 (22) Date of filing: 12.05.1980

(51) International Patent Classification (IPC):  A01N 25/ 00( . ) A01N 25/ 30( . ) A01N 33/ 12( . ) A01N 57/ 20( . ) A01N 25/ 24( . ) A01N 25/ 32( . ) A01N 43/ 40( . ) (86) International application number: PCT/GB1980/000087 (87) International publication number: WO 1980/002360 (13.11.1980 Gazette 1980/26)

(84) Designated Contracting States: AT DE FR GB NL SE (30) Priority: 10.05.1979 GB 19790016133 16.06.1979 GB 19790021035 (71) Applicant: Sampson, Michael James Chichester Sussex (GB)	(72) Inventor: Sampson, Michael James Chichester Sussex (GB)