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DATAMP Patents by Date for February 1947
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
42,415,121----[datamp][all]
112,415,801----[datamp][all]
182,416,277----[datamp][all]
252,416,493----[datamp][all]