(19)

(11)

EP 0 247 063 A1

(12)

(43) Date of publication: 02.12.1987 Bulletin 1987/49 (21) Application number: 86904540.0 (22) Date of filing: 20.06.1986

(51) International Patent Classification (IPC):  B64C 39/ 00( . ) B64F 5/ 00( . ) B64C 1/ 00( . ) (86) International application number: PCT/US1986/001324 (87) International publication number: WO 1987/003265 (04.06.1987 Gazette 1987/12)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 22.11.1985 WO 1985US02284 (71) Applicant: FOX BROTHERS LIMITED PARTNERSHIP San Diego, CA 92110 (US)	(72) Inventor: FOX, William, W. San Diego, CA 92107 (US) (74) Representative: MacGregor, Gordon  ERIC POTTER CLARKSON St. Mary's Court St. Mary's Gate Nottingham, NG1 1LE Nottingham, NG1 1LE (GB)