(19)

(11)

EP 0 227 747 A1

(12)

(43) Date of publication: 08.07.1987 Bulletin 1987/28 (21) Application number: 86903964.0 (22) Date of filing: 12.06.1986

(51) International Patent Classification (IPC):  G06F 13/ 26( . ) G06F 15/ 173( . ) G06F 13/ 38( . ) G06F 11/ 22( . ) (86) International application number: PCT/US1986/001219 (87) International publication number: WO 1987/000317 (15.01.1987 Gazette 1987/01)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 28.06.1985 US 19850750165 (71) Applicant: MICROSCIENCE CORPORATION Dunwoody, GA 30338 (US)	(72) Inventors: TRAGEN, Barry, J. Forest Grove, OR 97110 (US) SWIGER, Stephen, M. Portland, OR 97211 (US) GLOVER, William, T. Roswell, GA 30075 (US)