$DHR SEC Filings

Filing Filed On
PRELIMINARY PROXY STATEMENT 16 Mar 2012
PRELIMINARY PROXY STATEMENT 18 Mar 2011
PRELIMINARY PROXY STATEMENT 23 Mar 2007
PRELIMINARY PROXY MATERIAL 03 Apr 2002
PRELIMINARY PROXY 23 Mar 2001
PRELIMINARY PROXY STATEMENT 06 Mar 1998
PRELIMINARY NOTICE & PROXY STATEMENT 18 Mar 1997
PRELIMINARY PROXY 08 Mar 1996