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DATAMP Patents by Date for April 1877
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
3189,044----[datamp][all]
10189,309----[datamp][all]
17189,563----[datamp][all]
24189,864RE7,632---[datamp][all]