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DATAMP Patents by Date for March 1961
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
72,973,674----[datamp][all]
142,974,451----[datamp][all]
212,975,701----[datamp][all]
282,976,650----[datamp][all]