(19)

(11)

EP 0 254 713 A1

(12)

(43) Date of publication: 03.02.1988 Bulletin 1988/05 (21) Application number: 86901141.0 (22) Date of filing: 06.02.1986

(51) International Patent Classification (IPC):  F16D 3/ 34( . ) F16D 3/ 44( . ) (86) International application number: PCT/KR1986/000006 (87) International publication number: WO 1987/004221 (16.07.1987 Gazette 1987/15)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 07.01.1986 KR 20110000086 (71) Applicants: PARK, Sung Bae Mapo-ku Seoul 121-00 (KR) HONG, Sung Nam Mapo-ku Seoul 121-00 (KR)	(72) Inventors: PARK, Sung Bae Mapo-ku Seoul 121-00 (KR) HONG, Sung Nam Mapo-ku Seoul 121-00 (KR)