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Print/export Download as PDF; ... Patent drawings for US1071500A.png 569 × 620; 163 KB. ... Us patent 1867377 sheet 2.jpg 430 × 651; 95 KB.
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The United States Patent and Trademark Office (USPTO) specifies the size of the sheet on which the drawing is made, the type of paper, the margins, and other details relating to the making of the drawing. The reason for specifying the standards in detail is that the drawings are printed and published in a uniform style when the patent issues ...
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[13] [14] Robbins most probably had drawings done by Robert Washington Fenwick, his apprentice artist. [15] Robbins filed the application on March 10, 1849, [13] which was granted as Patent No. 6,469 on May 22, 1849. [16] Lincoln's patent is the result of Offutt's flat-boat experience he had back in 1831. [17]
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