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DATAMP Patents by Date for March 1890
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
4422,467-D19,689--[datamp][all]
11422,930----[datamp][all]
18423,424----[datamp][all]
25423,904----[datamp][all]