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DATAMP Patents by Date for December 1890
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
2441,633-D20,358--[datamp][all]
9442,153----[datamp][all]
16442,640----[datamp][all]
23443,107----[datamp][all]
30443,500----[datamp][all]