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DATAMP Patents by Date for September 1922
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
51,428,002----[datamp][all]
121,428,582----[datamp][all]
191,429,421----[datamp][all]
261,429,942----[datamp][all]