(19)

(11)

EP 0 035 998 A1

(12)

(43) Date of publication: 23.09.1981 Bulletin 1981/38 (21) Application number: 80901674.0 (22) Date of filing: 12.09.1980

(51) International Patent Classification (IPC):  B24D 13/ 10( . ) B24D 99/ 00( . ) B24D 13/ 02( . ) (86) International application number: PCT/SE1980/000223 (87) International publication number: WO 1981/000689 (19.03.1981 Gazette 1981/07)

(84) Designated Contracting States: AT CH DE FR GB LI LU NL SE (30) Priority: 12.09.1979 SE 19790000186 (71) Applicant: HOLMBERG, Göte Eskil Yngve (deceased, legally represented by HOLMBERG, Brita G. E.) S-334 00 Anderstorp (SE)	(72) Inventor: HOLMBERG, Göte Eskil Yngve (deceased, legally represented by HOLMBERG, Brita G. E.) S-334 00 Anderstorp (SE)