(19)

(11)

EP 0 386 212 A1

(12)

(43) Date of publication: 12.09.1990 Bulletin 1990/37 (21) Application number: 89909991.0 (22) Date of filing: 09.08.1989

(51) International Patent Classification (IPC):  E03C 1/ 05( . ) G05D 23/ 13( . ) (86) International application number: PCT/US1989/003416 (87) International publication number: WO 1990/002989 (22.03.1990 Gazette 1990/07)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 14.09.1988 US 19880244135 01.06.1989 US 19890359994 30.06.1989 US 19890374666 (71) Applicants: LEE, Chang, Hwan Cliffside Park, NJ 07010 (US) KIM, Young, Jun Seoul (KR)	(72) Inventors: LEE, Chang, Hwan Cliffside Park, NJ 07010 (US) KIM, Young, Jun Seoul (KR) (74) Representative: Goddar, Heinz J., Dr.  FORRESTER & BOEHMERT Franz-Joseph-Strasse 38 D-80801 München D-80801 München (DE)