(19)

(11)

EP 0 746 781 A1

(12)

(43) Date of publication: 11.12.1996 Bulletin 1996/50 (21) Application number: 94920339.0 (22) Date of filing: 08.07.1994

(51) International Patent Classification (IPC):  B42D 15/ 10( . ) G02B 5/ 18( . ) (86) International application number: PCT/AU1994/000381 (87) International publication number: WO 1995/002200 (19.01.1995 Gazette 1995/04)

(84) Designated Contracting States: CH DE FR GB LI (30) Priority: 09.07.1993 AU 1993PL09885 (71) Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION Parkville, VIC 3052 (AU)	(72) Inventor: LEE, Robert, Arthur East Burwood, Victoria 3151 (AU) (74) Representative: Brown, John David  FORRESTER & BOEHMERT Franz-Joseph-Strasse 38 80801 München 80801 München (DE)