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Allen Automatic Injector, Patent Model
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Allen Automatic Injector, Patent Model

Allen, Charles B. · 1902 · brass (overall material)

From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.

About this work

This model was submitted to the U.S. Patent Office with the application for the patent issued to Charles B. Allen, of Wadsworth, Ohio, April 15, 1902, no. 697770.

National Museum of American History’s own description
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Credit lineAllen Automatic Injector, Patent Model. 1902. Allen, Charles B.. National Museum of American History. CC0.
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