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<p>[QUOTE="DragonflyWink, post: 4327824, member: 111"]Keuffel & Esser Patent 844,772, but would expect the case and instruments to bear some kind of K&E trademark, suppose they could have sold use of the patent's pivoting mechanism to another manufacturer...</p><p><br /></p><p><a href="https://patents.google.com/patent/US844772" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://patents.google.com/patent/US844772" rel="nofollow">https://patents.google.com/patent/US844772</a></p><p><br /></p><p>~Cheryl[/QUOTE]</p><p><br /></p>
[QUOTE="DragonflyWink, post: 4327824, member: 111"]Keuffel & Esser Patent 844,772, but would expect the case and instruments to bear some kind of K&E trademark, suppose they could have sold use of the patent's pivoting mechanism to another manufacturer... [URL]https://patents.google.com/patent/US844772[/URL] ~Cheryl[/QUOTE]
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