(19)

(11)

EP 0 767 852 A1

(12)

(43) Date of publication: 16.04.1997 Bulletin 1997/16 (21) Application number: 95923132.0 (22) Date of filing: 28.06.1995

(51) International Patent Classification (IPC):  D21H 19/ 14( . ) D21H 27/ 10( . ) D21H 21/ 20( . ) (86) International application number: PCT/AU1995/000385 (87) International publication number: WO 1996/000815 (11.01.1996 Gazette 1996/03)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 28.06.1994 AU 1994PM06524 (71) Applicant: Pratt Research and Development Pty Ltd Melbourne, VIC 3000 (AU)	(72) Inventors: ONG, Alex North Carlton, VIC 3053 (AU) DAWNSON, Ronley, John Gladstone Park, VIC 3043 (AU) DRUMMOND, Calum, John Emerald, VIC 3782 (AU) ELDRIDGE, Robert, James Glen Waverley, VIC 3150 (AU) GEORGAKLIS, George Mount Waverley, VIC 3149 (AU) (74) Representative: Schmitz, Jean-Marie, et al  Dennemeyer & Associates S.A., P.O. Box 1502 1015 Luxembourg 1015 Luxembourg (LU)