(19)
(11) EP 0 516 619 A1

(12)

(43) Date of publication:
09.12.1992 Bulletin 1992/50

(21) Application number: 90914545.0

(22) Date of filing: 28.09.1990
(51) International Patent Classification (IPC): 
G01N 29/ 26( . )
G01N 29/ 22( . )
(86) International application number:
PCT/GB1990/001494
(87) International publication number:
WO 1991/005249 (18.04.1991 Gazette 1991/09)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB IT LI LU NL SE

(30) Priority: 29.09.1989 GB 19890022057

(71) Applicant: LK LIMITED
Castle Donington, Derby DE7 2SA (GB)

(72) Inventor:
  • EDWARDS, David, Bryn
    Tempe, AZ 85281 (US)

(74) Representative: Drever, Ronald Fergus 
Swindell & Pearson 48, Friar Gate
Derby DE1 1GY
Derby DE1 1GY (GB)

   


(54) IMPROVEMENTS IN OR RELATING TO TESTING OR WORKING OF MATERIALS