(19)

(11)

EP 0 034 603 A1

(12)

(43) Date of publication: 02.09.1981 Bulletin 1981/35 (21) Application number: 80901583.0 (22) Date of filing: 14.08.1980

(51) International Patent Classification (IPC):  F01N 1/ 08( . ) F01N 1/ 10( . ) (86) International application number: PCT/SE1980/000210 (87) International publication number: WO 1981/000591 (05.03.1981 Gazette 1981/06)

(84) Designated Contracting States: AT CH DE FR GB LI NL (30) Priority: 15.08.1979 SE 19790006824 (71) Applicant: MARECK B.V. NL-1071 DJ Amsterdam (NL)	(72) Inventor: OLSSON, Karl Börje S270 57 Kivik (SE)