Abigail C. Mullendore, US1999252A
Hat Horn.

On April 30, 1935, Abigail C. Mullendore of Philadelphia, Pennsylvania, was granted a patent for developing a novel hat designed to minimize hair disarrangement. Her invention promised to provide an inexpensive tool that could be conveniently carried around to keep hair in place.
Date of Application: 23 January 1933
Date of Issuance: 30 April 1935
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