(19)

(11)

EP 0 359 747 A1

(12)

(43) Date of publication: 28.03.1990 Bulletin 1990/13 (21) Application number: 88903143.0 (22) Date of filing: 08.04.1988

(51) International Patent Classification (IPC):  D06M 11/ 00( . ) D04H 1/ 54( . ) D06M 10/ 00( . ) D06M 11/ 30( . ) D06M 101/ 00( . ) D06M 101/ 10( . ) D06M 101/ 16( . ) D06M 101/ 32( . ) D04H 1/ 42( . ) D04H 1/ 58( . ) D06M 11/ 09( . ) D06M 11/ 50( . ) D06M 101/ 02( . ) D06M 101/ 12( . ) D06M 101/ 30( . ) (86) International application number: PCT/AU1988/000100 (87) International publication number: WO 1988/008049 (20.10.1988 Gazette 1988/23)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 10.04.1987 AU 19870001370 (71) Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION Parkville, VIC 3052 (AU)	(72) Inventor: NAYLOR, Geoffrey, Robert, Stewart Ocean Grove, VIC 3226 (AU) (74) Representative: Miller, Joseph, et al  J. MILLER & CO. 34 Bedford Row, Holborn London WC1R 4JH London WC1R 4JH (GB)