inventions

Inventions & Inventors

Totally Absurd Inventions

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John G. Trumble 3,361,298

John G. Trumble 3,384,267

John G. Trumble 3,510,024

John G. Trumble 3,626,476

U.S. Patents (U.S.Patent and Trademark Office)

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Totally Absurd Inventions (Weekly Update)

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Greatest Engineering Achievements of the 20th Century