(19)

(11)

EP 0 034 613 A1

(12)

(43) Date of publication: 02.09.1981 Bulletin 1981/35 (21) Application number: 80901635.0 (22) Date of filing: 01.09.1980

(51) International Patent Classification (IPC):  H04M 1/ 215( . ) (86) International application number: PCT/AU1980/000057 (87) International publication number: WO 1981/000656 (05.03.1981 Gazette 1981/06)

(84) Designated Contracting States: AT CH DE FR GB LI LU NL SE (30) Priority: 31.08.1979 AU 19790000286 (71) Applicant: ELECTRO MEDICAL ENGINEERING PTY. LTD. Armadale, Vic. 3143 (AU)	(72) Inventor: WHITBY, David Scott Glen Iris, Vic. 3146 (AU)