(19)

(11)

EP 0 344 199 A1

(12)

(43) Date of publication: 06.12.1989 Bulletin 1989/49 (21) Application number: 88901772.0 (22) Date of filing: 17.02.1988

(51) International Patent Classification (IPC):  E04G 7/ 12( . ) F16B 2/ 18( . ) F16B 7/ 04( . ) E04G 7/ 14( . ) F16B 2/ 20( . ) (86) International application number: PCT/AU1988/000044 (87) International publication number: WO 1988/006222 (25.08.1988 Gazette 1988/19)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 17.02.1987 AU 19870000404 (71) Applicant: ROBINSON, Donald Scott East Bentleigh, VIC 3165 (AU)	(72) Inventor: ROBINSON, Donald Scott East Bentleigh, VIC 3165 (AU) (74) Representative: Orr, William McLean, et al  URQUHART-DYKES & LORD 5th Floor, Tower House Merrion Way Leeds West Yorkshire, LS2 8PA Leeds West Yorkshire, LS2 8PA (GB)