(19)

(11)

EP 0 090 990 A3

(12)	EUROPEAN PATENT APPLICATION

(88) Date of publication A3: 03.12.1986 Bulletin 1986/49 (43) Date of publication A2: 12.10.1983 Bulletin 1983/41 (21) Application number: 83102743 (22) Date of filing: 19.03.1983

(84) Designated Contracting States: FR GB IT NL (30) Priority: 03.04.1982 DE 3212579 (71) Applicant: Grote & Hartmann GmbH & Co. KG  ()	(72) Inventor: Könnemann, Alfred, Ing. grad.  ()