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DATAMP Patents by Date for April 1925
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
71,532,147RE16,038---[datamp][all]
141,533,097----[datamp][all]
211,534,282----[datamp][all]
281,535,096----[datamp][all]