(19)

(11)

EP 0 344 252 A1

(12)

(43) Date of publication: 06.12.1989 Bulletin 1989/49 (21) Application number: 88910177.0 (22) Date of filing: 14.11.1988

(51) International Patent Classification (IPC):  B66F 7/ 16( . ) (86) International application number: PCT/SE1988/000607 (87) International publication number: WO 1989/004808 (01.06.1989 Gazette 1989/12)

(84) Designated Contracting States: BE DE FR GB IT NL SE (30) Priority: 23.11.1987 SE 19870004618 (71) Applicant: Nilsson, Nils-Enar S-811 36 Sandviken (SE)	(72) Inventor: Nilsson, Nils-Enar S-811 36 Sandviken (SE) (74) Representative: Bjerkén, Jarl Hakan  Bjerkéns Patentbyra KB P.O.Box 1274 S-801 37 Gävle S-801 37 Gävle (SE)