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DATAMP Patents by Date for December 1864
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
645,306----[datamp][all]
1345,388----[datamp][all]
2045,465----[datamp][all]
2745,580----[datamp][all]