(19)

(11)

EP 0 219 515 A1

(12)

(43) Date of publication: 29.04.1987 Bulletin 1987/18 (21) Application number: 86902280.0 (22) Date of filing: 27.03.1986

(51) International Patent Classification (IPC):  A01B 23/ 04( . ) A01B 59/ 042( . ) A01B 35/ 30( . ) A01B 73/ 04( . ) (86) International application number: PCT/AU1986/000083 (87) International publication number: WO 1986/005653 (09.10.1986 Gazette 1986/22)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 29.03.1985 AU 19850009968 (71) Applicant: ALFARM INDUSTRIES PTY. LTD. Albury, NSW 2640 (AU)	(72) Inventor: REMPE, Hendrik Wodonga, VIC 3690 (AU) (74) Representative: Coxon, Philip, et al  Eric Potter & Clarkson St. Mary's Court St. Mary's Gate Nottingham NG1 1LE Nottingham NG1 1LE (GB)