<div class="description">
<dl><dd>Vol. I</dd>
<dd>Attributed to Canada. Patent Office--National Union Catalog pre-1956 imprints</dd>
<dd>Filmed from a copy of the original publication held by the National Library of Canada</dd>
<dd>43</dd></dl><br>Subjects: Patents; Brevets d'invention</div>
<div class="fn value">
Canada. Patent Office</div>
Internet Archive identifier