Andrew Jackson Beard
By Mary Bellis, About.com
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Andrew Jackson Beard - Rotary Engine
Andrew Jackson Beard - Rotary Engine - Figures 1,2
In 1892, Andrew Jackson Beard patented a rotary engine.
Index: Andrew Jackson Beard
- Andrew Jackson Beard - Rotary Engine
- Andrew Jackson Beard - Rotary Engine
- Andrew Jackson Beard - Jenny Coupler
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Andrew Jackson Beard
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