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DATAMP Patents by Date for May 1928
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
11,667,801----[datamp][all]
81,668,633----[datamp][all]
151,669,423----[datamp][all]
221,670,360----[datamp][all]
291,671,159----[datamp][all]