(19)

(11)

EP 0 853 535 A1

(12)

(43) Date of publication: 22.07.1998 Bulletin 1998/30 (21) Application number: 96931085.0 (22) Date of filing: 20.09.1996

(51) International Patent Classification (IPC):  B27M 3/ 00( . ) (86) International application number: PCT/FI1996/000500 (87) International publication number: WO 1997/010934 (27.03.1997 Gazette 1997/14)

(84) Designated Contracting States: AT CH DE DK ES FR GB IE IT LI PT SE (30) Priority: 21.09.1995 FI 19950000409U (71) Applicants: Pitkänen, Risto Heikki 10300 Karjaa (FI) Fagerroos, Jorma Tapani 29900 Merikarvia (FI)	(72) Inventors: Pitkänen, Risto Heikki 10300 Karjaa (FI) Fagerroos, Jorma Tapani 29900 Merikarvia (FI) (74) Representative: Svensson, Johan Henrik  Berggren Oy Ab, P.O. Box 16 00101 Helsinki 00101 Helsinki (FI)