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DATAMP Patents by Date for April 1989
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
44,817,693----[datamp][all]
114,819,521----[datamp][all]
184,821,419----[datamp][all]
254,823,636----[datamp][all]