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DATAMP Patents by Date for April 1918
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
21,261,007----[datamp][all]
91,261,778----[datamp][all]
161,262,795----[datamp][all]
231,263,385----[datamp][all]
301,264,145----[datamp][all]