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DATAMP Patents by Date for January 1891
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
6443,989-D20,448--[datamp][all]
13444,450----[datamp][all]
20444,810----[datamp][all]
27445,160----[datamp][all]