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DATAMP Patents by Date for February 1918
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
51,255,230-D51,729--[datamp][all]
121,255,886-D51,773--[datamp][all]
191,256,646----[datamp][all]
261,257,472----[datamp][all]