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J. E. H. Andrew & Co. - 1902 Article-J. E. H. Andrew & Co., Bisschop

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Roberts Motor Company Aircraft Engines | Old Machine Press

Roberts Motor Company Aircraft Engines | Old Machine Press

Biography On Andrew Jackson Beard California - writenetwork

Biography On Andrew Jackson Beard California - writenetwork

PPT - Black Inventors PowerPoint Presentation, free download - ID:2615169

PPT - Black Inventors PowerPoint Presentation, free download - ID:2615169

Rotary Steam Engines: Page 6.

Rotary Steam Engines: Page 6.

Blackfacts.com - On this day Andrew J. Beard, and African American

Blackfacts.com - On this day Andrew J. Beard, and African American

J. E. H. Andrew & Co. - 1902 Article-J. E. H. Andrew & Co., Bisschop

J. E. H. Andrew & Co. - 1902 Article-J. E. H. Andrew & Co., Bisschop

Doyle Rotary Engine

Doyle Rotary Engine

Andrew J. Beard, Farmer, and Inventor born - African American Registry

Andrew J. Beard, Farmer, and Inventor born - African American Registry

Kurt Robertson explains how a Rotary engine works | Rotary, Engineering

Kurt Robertson explains how a Rotary engine works | Rotary, Engineering

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