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DATAMP Patents by Date for April 1969
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
83,436,968----[datamp][all]
153,438,329----[datamp][all]
223,439,378----[datamp][all]
293,440,933----[datamp][all]