(19)

(11)

EP 0 055 704 A1

(12)

(43) Date of publication: 14.07.1982 Bulletin 1982/28 (21) Application number: 81900140.0 (22) Date of filing: 13.01.1981

(51) International Patent Classification (IPC):  A61G 17/ 00( . ) A61G 17/ 013( . ) (86) International application number: PCT/GB1981/000004 (87) International publication number: WO 1981/002669 (01.10.1981 Gazette 1981/23)

(84) Designated Contracting States: AT DE FR GB NL SE (30) Priority: 28.03.1980 GB 19800010424 (71) Applicants: Parlour, Henry William Market Harborough Leicestershire (GB) Ginns, Paul Arthur Desford Leicestershire, LE 9 9GS (GB)	(72) Inventors: Parlour, Henry William Market Harborough Leicestershire (GB) Ginns, Paul Arthur Desford Leicestershire, LE 9 9GS (GB) (74) Representative: Serjeant, Andrew Charles  25 The Crescent King Street Leicester, LE1 6RX Leicester, LE1 6RX (GB)