Form PCT/ISA/210 (patent family annex) (April 2005) Patent document Publication Patent family Publication cited in search report date member(s) date EP 0758159 A2 12-02-1997 DE 69620517 Dl 16-05-2002 DE 69620517 T2 07-11-2002 US 5739622 A 14-04-1998 US 2003038612 Al 27-02-2003 NONE