Template:Selected anniversaries/June 20: Difference between revisions

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||1884: Mary R. Calvert born ... astronomer and author.
||1884: Mary R. Calvert born ... astronomer and author.
||1897: Harold Frederick Pitcairn born ... aviation inventor and pioneer. He played a key role in the development of the autogyro and founded the Autogiro Company of America. He patented a number of innovations relating to rotary wing aircraft. Pic.


||1903: Benjamin deForest "Pat" Bayly born ... electrical engineer and a professor at the University of Toronto. During World War II he invented a cypher machine called the Rockex and handled communications at the secret intelligence base Camp X.
||1903: Benjamin deForest "Pat" Bayly born ... electrical engineer and a professor at the University of Toronto. During World War II he invented a cypher machine called the Rockex and handled communications at the secret intelligence base Camp X.

Revision as of 12:47, 1 November 2018