(19)

(11)

EP 0 799 355 A1

(12)

(43) Date of publication: 08.10.1997 Bulletin 1997/41 (21) Application number: 95941980.0 (22) Date of filing: 19.12.1995

(51) International Patent Classification (IPC):  E04D 13/ 072( . ) (86) International application number: PCT/AU1995/000860 (87) International publication number: WO 1996/019624 (27.06.1996 Gazette 1996/29)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 19.12.1994 AU 1994PN00163 (71) Applicant: KEYTOWN PTY. LTD. Sydney, NSW 2000 (AU)	(72) Inventor: AXFORD, Paul, Phillip, John Bexley, NSW 2207 (AU) (74) Representative: Gervasi, Gemma, Dr., et al  NOTARBARTOLO & GERVASI Corso di Porta Vittoria, 9 20122 Milano 20122 Milano (IT)