(19)

(11)

EP 0 034 581 A1

(12)

(43) Date of publication: 02.09.1981 Bulletin 1981/35 (21) Application number: 79901165.0 (22) Date of filing: 12.09.1979

(51) International Patent Classification (IPC):  B08B 7/ 02( . ) B24D 99/ 00( . ) B24D 13/ 04( . ) (86) International application number: PCT/SE1979/000186 (87) International publication number: WO 1980/002526 (27.11.1980 Gazette 1980/27)

(84) Designated Contracting States: AT CH DE FR GB LU NL SE (30) Priority: 23.05.1979 SE 19790004541 (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) (74) Representative: Ström, Tore  Ström & Gulliksson AB Studentgatan 1 P.O. Box 4188 S-203 13 Malmö S-203 13 Malmö (SE)