(19)

(11)

EP 0 248 000 A1

(12)

(43) Date of publication: 09.12.1987 Bulletin 1987/50 (21) Application number: 85905569.0 (22) Date of filing: 25.10.1985

(51) International Patent Classification (IPC):  G01R 22/ 00( . ) G01R 1/ 04( . ) G01R 1/ 02( . ) (86) International application number: PCT/US1985/002087 (87) International publication number: WO 1987/002782 (07.05.1987 Gazette 1987/10)

(84) Designated Contracting States: CH DE FR GB LI (71) Applicant: GENERAL ELECTRIC COMPANY Schenectady New York 12305 (US)	(72) Inventors: GERMER, Warren, Ralph Dover, NH 03820 (US) LOSAPIO, Peter, Frank Dover, NH 03820 (US)