(19)

(11)

EP 0 879 123 A1

(12)

(43) Date of publication: 25.11.1998 Bulletin 1998/48 (21) Application number: 96939374.0 (22) Date of filing: 29.11.1996

(51) International Patent Classification (IPC):  B28B 1/ 52( . ) E04B 1/ 76( . ) B28B 23/ 00( . ) (86) International application number: PCT/PT1996/000010 (87) International publication number: WO 1997/047446 (18.12.1997 Gazette 1998/02)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (71) Applicants: Meli, Giancarlo 20100 Milano (IT) Vieira, Alberto Tomas 3810 Aveiro (PT)	(72) Inventors: Meli, Giancarlo 20100 Milano (IT) Vieira, Alberto Tomas 3810 Aveiro (PT) (74) Representative: Pereira, Antonio Maria  Rua Silva Carvalho, 234, 7th Floor 1250 Lisboa 1250 Lisboa (PT)