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DATAMP Patents by Date for May 1957
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
72,791,070----[datamp][all]
142,791,921-D180,271--[datamp][all]
212,792,733----[datamp][all]
282,793,485-D180,363--[datamp][all]