(19)

(11)

EP 0 462 974 A1

(12)

(43) Date of publication: 02.01.1992 Bulletin 1992/01 (21) Application number: 90901920.0 (22) Date of filing: 18.01.1990

(51) International Patent Classification (IPC):  A01G 23/ 091( . ) B27B 17/ 02( . ) (86) International application number: PCT/SE1990/000042 (87) International publication number: WO 1990/007870 (26.07.1990 Gazette 1990/17)

(84) Designated Contracting States: AT DE DK ES FR GB (30) Priority: 18.01.1989 SE 19890000170 (71) Applicant: TECHNOSWED AB S-826 01 Söderhamn (SE)	(72) Inventor: KELLER, Leif S-826 00 Söderhamn (SE) (74) Representative: Johansson, Lars E.  AWAPATENT AB, Box 53 S-826 01 Söderhamn S-826 01 Söderhamn (SE)