Sarah Vincent Beal of Ann Arbor (1834-1912) was the inventor of a patented improved bed pan (patent 330548), issued in 1885.
More information
- WOMEN INVENTORS INDEX - 1790-1895: Michigan
- Patent 330548
- Mothers and daughters of invention: notes for a revised history of technology, Autumn Stanley, Rutgers University Press, 1995. ISBN 0813521971
- Wildmead Internments, Reno County Geneological Society; listing for Sarah V. (Beal) Hahan.
