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DATAMP Patents by Date for July 1921
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
51,383,552RE15,144---[datamp][all]
121,384,105----[datamp][all]
191,385,214----[datamp][all]
261,385,385RE15,162D58,461--[datamp][all]