(19)

(11)

EP 1 200 694 A1

(12)

(43) Date of publication: 02.05.2002 Bulletin 2002/18 (21) Application number: 00904679.8 (22) Date of filing: 24.01.2000

(51) International Patent Classification (IPC)7: E04H 12/10, E04C 3/08 (86) International application number: PCT/AU0000/036 (87) International publication number: WO 0077/325 (21.12.2000 Gazette 2000/51)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 09.06.1999 AU PP088199 27.10.1999 AU PP369099 (71) Applicant: PRESTON, John Clement Silverwater, NSW 2128 (AU)	(72) Inventor: PRESTON, John Clement Silverwater, NSW 2128 (AU) (74) Representative: Viering, Jentschura & Partner  Steinsdorfstrasse 6 80538 München 80538 München (DE)