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DATAMP Patents by Date for February 1928
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
71,658,146----[datamp][all]
141,658,808----[datamp][all]
211,659,574----[datamp][all]
281,660,335----[datamp][all]