(19)

(11)

EP 0 313 566 A1

(12)

(43) Date of publication: 03.05.1989 Bulletin 1989/18 (21) Application number: 87904403.0 (22) Date of filing: 26.06.1987

(51) International Patent Classification (IPC):  A01G 25/ 09( . ) (86) International application number: PCT/IT1987/000066 (87) International publication number: WO 1988/000036 (14.01.1988 Gazette 1988/02)

(84) Designated Contracting States: AT BE CH DE FR GB LI NL (30) Priority: 30.06.1986 IT 19860033513 05.12.1986 IT 19860033526 30.01.1987 IT 19870033503 (71) Applicant: NUOVA CIERRE S.R.L. I-29010 Calendasco (IT)	(72) Inventor: ZANNONI, Angelo I-San Nicolò (IT) (74) Representative: Torrani, Giancarlo  Via Pellizzone 13 I-20133 Milano I-20133 Milano (IT)