(19)

(11)

EP 0 240 544 A1

(12)

(43) Date of publication: 14.10.1987 Bulletin 1987/42 (21) Application number: 86906115.0 (22) Date of filing: 18.09.1986

(51) International Patent Classification (IPC):  H04M 17/ 00( . ) H04M 17/ 02( . ) (86) International application number: PCT/US1986/001952 (87) International publication number: WO 1987/002208 (09.04.1987 Gazette 1987/08)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 25.09.1985 US 19850779981 (71) Applicant: SOUTHLAKE TECHNOLOGIES, INC. Reston, VA 22091 (US)	(72) Inventor: GOLDEN, Michael, E. Reston, VA 22091 (US)