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DATAMP Patents by Date for November 1941
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
42,261,421----[datamp][all]
112,262,512----[datamp][all]
182,262,969----[datamp][all]
252,263,680----[datamp][all]