(19)

(11)

EP 0 022 784 A1

(12)

(43) Date of publication: 28.01.1981 Bulletin 1981/04 (21) Application number: 79901203.0 (22) Date of filing: 13.09.1979

(51) International Patent Classification (IPC):  C02F 3/ 28( . ) C12M 1/ 107( . ) (86) International application number: PCT/DK1979/000030 (87) International publication number: WO 1980/000694 (17.04.1980 Gazette 1980/08)

(84) Designated Contracting States: DE FR GB NL SE (30) Priority: 20.09.1978 DK 19780004156 (71) Applicant: SORENSEN, Kjeld Havelkke DK-5854 Gislev (DK)	(72) Inventor: SORENSEN, Kjeld Havelkke DK-5854 Gislev (DK)