Philadelphia Patents

<body><table dir="ltr" border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td valign="top"> <p>This page uses frames, but your browser doesn't support them.</p> </td></tr></table><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td> <h5 align="center"><br> <font color="red">Contact:</font> <a title="Email Webmaster" href="mailto:david@guttman.com"><font color="red"> webmaster</font></a>             <font color="red">Copyright © 2011</font> <a target="_blank" title="Guttman Patent Office" href="../dsg"> <font color="red">David S. Guttman</font></a></h5> </td></tr></table></body>