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DATAMP Patents by Date for April 1909
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
6917,015----[datamp][all]
13917,840----[datamp][all]
20918,512----[datamp][all]
27919,351----[datamp][all]