Helen Blanchard

Helen Augusta Blanchard. Source: Willard and Livermore, ''American Women'', Mast, Crowell & Kirkpatrick, 1897, 97 Helen Augusta Blanchard (25 October 1840 – January 12, 1922) was an American inventor who received 28 patents between 1873 and 1915. She was known for her numerous inventions dealing with sewing machines and sewing technology. Provided by Wikipedia
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