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DATAMP Patents by Date for January 1931
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
61,787,787----[datamp][all]
131,788,535----[datamp][all]
201,789,562RE17,933D83,121--[datamp][all]
271,790,019----[datamp][all]