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DATAMP Patents by Date for April 1888
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
3380,331----[datamp][all]
10380,692----[datamp][all]
17381,097----[datamp][all]
24381,525----[datamp][all]