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DATAMP Patents by Date for April 1862
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
134,808----[datamp][all]
834,883----[datamp][all]
1534,933----[datamp][all]
2235,058----[datamp][all]
2935,123RE1,304---[datamp][all]