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DATAMP Patents by Date for May 1915
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
41,137,838----[datamp][all]
111,138,722----[datamp][all]
181,139,555----[datamp][all]
251,140,605-D47,389--[datamp][all]