Invention and Engineering
Anna Wagner Keichline (May 24, 1889 – February 5, 1943) was an American architect, inventor, suffragist, and World War I Special Agent from Pennsylvania. She was the first woman to be registered as an architect in Pennsylvania and she was "one of the first women to actually practice architecture professionally". She was awarded seven patents, including one for a notched brick in 1927.
Canadian Pacific 374.
Credit card.
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