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DATAMP Patents by Date for April 1916
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
41,177,594----[datamp][all]
111,178,553----[datamp][all]
181,179,556----[datamp][all]
251,180,457----[datamp][all]