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DATAMP Patents by Date for April 1858
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
619,829RE542---[datamp][all]
1319,901----[datamp][all]
2019,983----[datamp][all]
2720,052----[datamp][all]