<div class="description">
<dl><dd>4 pages : 21 cm</dd>
<dd>"Sole licensees under the patent, Messrs. Salt &amp; Son, 21, Bull Street, Birmingham"</dd>
<dd>"Reprinted from Braithwaite's Retrospect of medicine, July, 1881"</dd></dl><br>Subjects: Patents; Thermography -- instrumentation</div>
Internet Archive identifier