Mary P. Carpenter

Mary P. Carpenter or Mary P.C. Cooper (1840 – 1900) was an American inventor from Buffalo, New York.
Carpenter was probably raised in a well-to-do family of Buffalo. She was educated in mechanical drawing and had a specific insight into the manufacturing process for textiles. She was probably born in the 1840s, though she was possibly a Scottish immigrant and thus no record of her birth in Buffalo has been found. She is known for 13 US patents that all have in common methods to save time among various domestic tasks. She also founded two companies, the "Carpenter Sewing Machine Needle Co." and the "Carpenter Straw Sewing Machine Co.".