U.S. Pat. No. 855,279 (Q68115)
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U.S. Pat. No. 855,279
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www.thingiverse.com
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auto
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en
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fros1y
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A 3D model of U.S. Pat. No. 985,969 -- cutting edge 1907 hat-holding technology! "To all whom it may concern: Be it known that I, WILLIAM H. BURDEN, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented new and useful Improvements in Hat-Holding Devices, of which the following is a specification."
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1.0.0
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https://spdx.org/licenses/CC-BY-SA-4.0
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thingiverse.com
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