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DATAMP Patents by Date for January 1939
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
32,142,303----[datamp][all]
102,143,255RE20,974D112,888--[datamp][all]
172,143,981----[datamp][all]
312,145,568----[datamp][all]