The expiration, August 14, of two of what have heretofore been considered the "controlling " patents of the McKay Sewing ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. David W. Clark Sewing machine Patent ...
This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
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