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DATAMP Patents by Date for May 1939
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
22,156,905----[datamp][all]
92,157,417----[datamp][all]
162,158,649----[datamp][all]
232,159,193----[datamp][all]
302,160,110-D115,042--[datamp][all]