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DATAMP Patents by Date for April 1950
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
42,502,463----[datamp][all]
112,503,551-D158,073--[datamp][all]
182,504,249----[datamp][all]
252,505,510----[datamp][all]