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DATAMP Patents by Date for May 1931
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
51,803,345----[datamp][all]
121,804,523----[datamp][all]
191,805,831----[datamp][all]
261,806,582----[datamp][all]