Diagram for <a href="https://en.wikipedia.org/wiki/United_States_Patent_and_Trademark_Office" class="extiw" title="w:United States Patent and Trademark Office">US Patent</a> 17,722, the <a href="https://en.wikipedia.org/wiki/Brown_truss" class="extiw" title="w:Brown truss">Brown truss</a>, granted to inventor, Josiah Brown Jr., of <a href="https://en.wikipedia.org/wiki/Buffalo,_New_York" class="extiw" title="w:Buffalo, New York">Buffalo</a>, <a href="https://en.wikipedia.org/wiki/New_York" class="extiw" title="w:New York">w:New York</a>, who <a href="https://en.wikipedia.org/wiki/patent" class="extiw" title="w:patent">w:patented</a> it July 7, 1857
Intellectual work of Josiah Brown Jr., deceased. Image bears inscription "H. Peters, <a href="https://en.wikipedia.org/wiki/lithography" class="extiw" title="w:lithography">Photolithographer|</a>, <a href="https://en.wikipedia.org/wiki/Washington,_D.C." class="extiw" title="w:Washington, D.C.">Washington</a>". Now in public domain as all US patents unless specifically noted are PD
patented July 7, 1857. Uploaded December 28, 2006
<a href="https://en.wikipedia.org/wiki/United_States_Patent_and_Trademark_Office" class="extiw" title="w:United States Patent and Trademark Office">USPTO</a> via <a href="https://en.wikipedia.org/wiki/Google_Patent" class="extiw" title="w:Google Patent">Google Patent</a>, patent <a rel="nofollow" class="external text" href="http://www.google.com/patents?vid=USPAT17722">page</a> image <a rel="nofollow" class="external text" href="http://www.google.com/patents?vid=USPAT17722&amp;pg=PA34">url</a>. Image cropped to remove whitespace on edges