Josephine Cochrane (1839-1913) made the first practical mechanical dishwasher in 1886, although a washing machine device was patented in 1850 by Joel Houghton | Photo via de.wikipedia.org | Permission: PD | read more about her on http://forgottennewsmakers.com/2010/04/20/josephine-cochrane-1839-1913-invented-the-dishwasher/
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