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DATAMP Patents by Date for April 1871
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
4113,261----[datamp][all]
11113,487RE4,333---[datamp][all]
18113,725----[datamp][all]
25113,964RE4,357D4,848--[datamp][all]