(19)

(11)

EP 0 233 222 A1

(12)

(43) Date of publication: 26.08.1987 Bulletin 1987/35 (21) Application number: 86904732.0 (22) Date of filing: 18.07.1986

(51) International Patent Classification (IPC):  F41A 9/ 26( . ) (86) International application number: PCT/AU1986/000206 (87) International publication number: WO 1987/000613 (29.01.1987 Gazette 1987/03)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 19.07.1985 AU 19850001544 (71) Applicant: ARMTECH LIMITED Parramatta, NSW 2150 (AU)	(72) Inventor: GIORGIO, Charles Cambridge Park, NSW (AU) (74) Representative: Warren, Keith Stanley, et al  BARON & WARREN 18 South End Kensington London W8 5BU London W8 5BU (GB)