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DATAMP Patents by Date for March 1861
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
531,595----[datamp][all]
1231,656----[datamp][all]
1931,697----[datamp][all]
2631,779----[datamp][all]