(19)

(11)

EP 0 507 912 A1

(12)

(43) Date of publication: 14.10.1992 Bulletin 1992/42 (21) Application number: 91918773.0 (22) Date of filing: 28.10.1991

(51) International Patent Classification (IPC):  A61F( . ) A61F 13/ 68( . ) A61F 13/ 15( . ) (86) International application number: PCT/KR1991/000027 (87) International publication number: WO 1992/007532 (14.05.1992 Gazette 1992/11)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI NL SE (30) Priority: 29.10.1990 KR 19900000164 (71) Applicant: CHUNG, Seun Yung Kwangmyung City, Kyeongki-Do 423-060 (KR)	(72) Inventor: CHUNG, Seun Yung Kwangmyung City, Kyeongki-Do 423-060 (KR) (74) Representative: Callewaert, Jean, et al  GEVERS Patents, Brussels Airport Business Park, Holidaystraat 5 B-1831 Diegem B-1831 Diegem (BE)