1948 Vintage Schwinn Bicycle Patent Blueprint Art Poster
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1948 Vintage Schwinn bicycle, bike US patent technical illustration. Patent number for this diagram is 2,439,755 More patent prints under our "Patent Prints" section.
1948 Vintage Schwinn bicycle, bike US patent technical illustration. Patent number for this diagram is 2,439,755 More patent prints under our "Patent Prints" section.