(19)

(11)

EP 1 356 304 A2

(12)

(88) Date of publication A3: 31.07.2003 (43) Date of publication: 29.10.2003 Bulletin 2003/44 (21) Application number: 01963625.7 (22) Date of filing: 07.08.2001

(51) International Patent Classification (IPC)7: G01N 35/02, G01N 1/44, G01N 33/04 (86) International application number: PCT/NZ0100/159 (87) International publication number: WO 0201/8956 (07.03.2002 Gazette 2002/10)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 01.09.2000 NZ 50668900 (71) Applicant: Intellitech Automation Limited Newstead,Hamilton (NZ)	(72) Inventors: CALIS, Frank Waimauku,Auckland (NZ) PAGE, Mark Leonard Waimauku,Auckland (NZ) (74) Representative: Brunner, Michael John  GILL JENNINGS & EVERY,Broadgate House,7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)