Silenius, P. (Inventor),
Aho, O. (Inventor), Pitkänen, M. (Inventor) & Hietanen, S. (Inventor),
31 Oct 2002, IPC No. D21H17/26 D21H17/69 D21H11/16 (+3), Patent No. WO02086238, Priority date
24 Apr 2001, Priority No. FI20010000849
Research output: Patent