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DATAMP Patents by Date for February 1938
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
12,107,174-D108,245--[datamp][all]
82,107,543----[datamp][all]
152,108,086----[datamp][all]
222,108,866RE20,660---[datamp][all]