http://www.ieeeghn.org/wiki/index.php?title=Wolfgang_Helfrich&feed=atom&action=historyWolfgang Helfrich - Revision history2013-05-23T13:10:56ZRevision history for this page on the wikiMediaWiki 1.17.0http://www.ieeeghn.org/wiki/index.php?title=Wolfgang_Helfrich&diff=73499&oldid=prevAdministrator1 at 17:57, 7 March 20122012-03-07T17:57:00Z<p></p>
Administrator1http://www.ieeeghn.org/wiki/index.php?title=Wolfgang_Helfrich&diff=65596&oldid=prevN.w.brewer at 19:13, 28 September 20112011-09-28T19:13:45Z<p></p>
N.w.brewerhttp://www.ieeeghn.org/wiki/index.php?title=Wolfgang_Helfrich&diff=64340&oldid=prevAdministrator1 at 21:12, 1 September 20112011-09-01T21:12:02Z<p></p>
Administrator1http://www.ieeeghn.org/wiki/index.php?title=Wolfgang_Helfrich&diff=64315&oldid=prevJherzog: Created page with "== Biography == James Fergason, Wolfgang Helfrich, and Martin Schadt each contributed greatly to the development of twisted-nematic liquid crystal technology. The technology is..."2011-09-01T17:48:59Z<p>Created page with "== Biography == James Fergason, Wolfgang Helfrich, and Martin Schadt each contributed greatly to the development of twisted-nematic liquid crystal technology. The technology is..."</p>
Jherzog