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DATAMP Patents by Date for December 1928
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
41,693,606----[datamp][all]
111,694,910----[datamp][all]
181,695,336----[datamp][all]
251,696,403----[datamp][all]