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DATAMP Patents by Date for August 1931
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
41,816,853----[datamp][all]
111,817,910----[datamp][all]
181,819,182-D84,910--[datamp][all]
251,820,154----[datamp][all]