U.S. Pat. No. 1,651,485
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Published on April 10, 2012
Description
A 3D model of U.S. Pat. No. 1,651,485. Cutting edge 1924 drinking-in-bed technology from the original Thingiverse--the U.S. PTO.
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License
U.S. Pat. No. 1,651,485 by fros1y is licensed under the Attribution - Share Alike - Creative Commons license.
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Looking at the drawings and description, I think it should have more of an inward curve to it about the width of a persons bottom lip.