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DATAMP Patents by Date for March 1972
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
73,647,227-D223,081--[datamp][all]
143,648,377----[datamp][all]
213,650,336----[datamp][all]
283,651,724----[datamp][all]