(19)

(11)

EP 0 097 027 A3

(12)	EUROPEAN PATENT APPLICATION

(88) Date of publication A3: 27.11.1985 Bulletin 1985/48 (43) Date of publication A2: 28.12.1983 Bulletin 1983/52 (21) Application number: 83303329 (22) Date of filing: 09.06.1983

(84) Designated Contracting States: BE DE FR GB IT LU NL (30) Priority: 16.06.1982 US 388851 (71) Applicant: IPM CORPORATION  ()	(72) Inventors: Reen, Orville W.  () Aunkst, Clayton W.  ()