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| Patents | Patents 1 - 1 on patent:D174173. (0.08 seconds) |
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| Patents | Patents 1 - 1 on patent:D174173. (0.08 seconds) |
US Pat. D174173 - Filed Nov 12, 1953 - United States Patent Office PEDAL ACTUATED ROUND-ABOUT Alvah W. Fowler, Fort Worth, Tex. Application November,, Serial No. 27549 Term of patent years (Cl. ...
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