(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