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DATAMP Patents by Date for April 1863
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
738,119----[datamp][all]
1438,139RE1,452---[datamp][all]
2138,226RE1,456---[datamp][all]
2838,273----[datamp][all]