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DATAMP Patents by Date for March 1928
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
61,661,174----[datamp][all]
131,662,109----[datamp][all]
201,662,959----[datamp][all]
271,663,748----[datamp][all]