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DATAMP Patents by Date for December 1858
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
722,231----[datamp][all]
1422,284----[datamp][all]
2122,360----[datamp][all]
2822,423----[datamp][all]