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blueprint patent (copy)
On this date in 1890, John P. Parker, Black businessman, and abolitionist patented the Soil Pulverizer.
This agricultural invention was a great asset to expediting farm harvesting. His patent number was #442538.
Created Equal: The Lives and Ideas of Black American Innovators
By James Michael Brodie
Copyright 1993, by Bill Adler Books, Inc.
William Morrow and Co. Inc., New York