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DATAMP Patents by Date for February 1939
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
72,145,980----[datamp][all]
142,147,203-D113,331--[datamp][all]
212,148,061----[datamp][all]
282,148,573----[datamp][all]