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(11)

EP 1 183 427 A1

(12)

(43) Date of publication: 06.03.2002 Bulletin 2002/10 (21) Application number: 99924089.8 (22) Date of filing: 18.05.1999

(51) International Patent Classification (IPC)7: E04C 2/38 (86) International application number: PCT/SG9900/046 (87) International publication number: WO 0070/165 (23.11.2000 Gazette 2000/47)

(84) Designated Contracting States: DE FR GB (71) Applicant: Inzign Pte Ltd. Singapore 339157 (SG)	(72) Inventors: KOUO, Wai, Chiau Singapore 247856 (SG) PHUA, Swee, Hoe Singapore 679668 (SG) (74) Representative: Watkin, Timothy Lawrence Harvey et al Lloyd Wise, Tregear & Co., Commonwealth House, 1-19 New Oxford Street London, WC1A 1LW London, WC1A 1LW (GB)