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DATAMP Patents by Date for March 1922
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
71,408,524----[datamp][all]
141,409,266----[datamp][all]
211,410,032----[datamp][all]
281,410,816----[datamp][all]