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DATAMP Patents by Date for April 1949
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
52,466,325----[datamp][all]
122,466,814-D153,407--[datamp][all]
192,467,499----[datamp][all]
262,468,039----[datamp][all]