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DATAMP Patents by Date for April 1854
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
410,737----[datamp][all]
1110,768----[datamp][all]
1810,778----[datamp][all]
2510,821----[datamp][all]