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DATAMP Patents by Date for March 1938
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
12,109,740----[datamp][all]
82,110,173-D108,690--[datamp][all]
152,111,067----[datamp][all]
222,111,871----[datamp][all]