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DATAMP Patents by Date for February 1862
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
434,300----[datamp][all]
1134,353----[datamp][all]
1834,410----[datamp][all]
2534,493----[datamp][all]