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U.S. Pat. No. 855,279

U.S. Pat. No. 855,279

thingiverse

The 3D model showcases U.S. Patent No. 985,969, an innovative hat-holding technology from 1907. This patent was filed by WILLIAM H. BURDEN, a resident of Detroit, Michigan. The inventor detailed the new and practical enhancements to hat-holding devices in his application.

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