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DATAMP Patents by Date for April 1851
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
18,012----[datamp][all]
88,022----[datamp][all]
158,036----[datamp][all]
228,056----[datamp][all]
298,066----[datamp][all]