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DATAMP Patents by Date for December 1923
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
41,475,950----[datamp][all]
111,476,862----[datamp][all]
181,477,562----[datamp][all]
251,478,472----[datamp][all]