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DATAMP Patents by Date for January 1921
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
41,364,324-D56,895--[datamp][all]
111,364,869----[datamp][all]
181,365,991-D56,945--[datamp][all]
251,366,413-D56,979--[datamp][all]