(19)

(11)

EP 0 113 715 A1

(12)

(43) Date of publication: 25.07.1984 Bulletin 1984/30 (21) Application number: 82902587.0 (22) Date of filing: 19.07.1982

(51) International Patent Classification (IPC):  C22C 33/ 08( . ) C22C 37/ 06( . ) C22C 37/ 00( . ) C22C 37/ 08( . ) (86) International application number: PCT/US1982/000976 (87) International publication number: WO 1984/000385 (02.02.1984 Gazette 1984/03)

(84) Designated Contracting States: BE FR (71) Applicant: GIW INDUSTRIES INC. Grovetown GA 30813 (US)	(72) Inventor: DAY, Wallace Martinez, GA 31707 (US) (74) Representative: Wilson, Nicholas Martin, et al  WITHERS & ROGERS 4 Dyer's Buildings Holborn London EC1N 2JT London EC1N 2JT (GB)