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DATAMP Patents by Date for February 1861
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
531,292----[datamp][all]
1231,368----[datamp][all]
1931,436RE1,139---[datamp][all]
2631,535RE1,147---[datamp][all]