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DATAMP Patents by Date for September 1928
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
41,682,844----[datamp][all]
111,683,601----[datamp][all]
181,684,464RE17,087---[datamp][all]
251,685,279----[datamp][all]