(19)

(11)

EP 0 346 387 A1

(12)

(43) Date of publication: 20.12.1989 Bulletin 1989/51 (21) Application number: 88902653.0 (22) Date of filing: 12.02.1988

(51) International Patent Classification (IPC):  G01J 3/ 06( . ) G01N 21/ 31( . ) G01J 3/ 42( . ) (86) International application number: PCT/US1988/000455 (87) International publication number: WO 1988/006280 (25.08.1988 Gazette 1988/19)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 17.02.1987 US 19870014873 (71) Applicants: SCUITTO, Thomas John Talent, OR 97540 (US) SCUITTO, Theodore J. Grants Pass, OR 97526 (US) BERNHARD, Al E. Brookings, OR 97415 (US)	(72) Inventors: SCUITTO, Thomas John Talent, OR 97540 (US) SCUITTO, Theodore J. Grants Pass, OR 97526 (US) BERNHARD, Al E. Brookings, OR 97415 (US) (74) Representative: Hedley, Nicholas James Matthew, et al  Stephenson Harwood One, St. Paul's Churchyard London EC4M 8SH London EC4M 8SH (GB)