Frank C. Howard
Inventors Wage Patent War
The model department of the United States Patent Office in Washington is illuminated here and there with the original models of the very great...
Anesthesia Makes Surgery Painless
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Steam Power Moves Ancient Monument
The model department of the United States Patent Office in Washington is illuminated here and there with the original models of the very great...
Earth May Revolve Around Sun
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Astronomer Reports Explosions on Sun
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Arrested Alchemist Must Make Gold To Win Freedom
The model department of the United States Patent Office in Washington is illuminated here and there with the original models of the very great...
Chester Carlson Invents Machine To Copy Documents
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Professor W.C. Röntgen Discovers X-Rays
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English Gentleman Invents Photography
The model department of the United States Patent Office in Washington is illuminated here and there with the original models of the very great...
Charles Babbage Invents Mechanical Calculator
The model department of the United States Patent Office in Washington is illuminated here and there with the original models of the very great...