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DATAMP Patents by Date for December 1941
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
22,264,391----[datamp][all]
92,265,335----[datamp][all]
162,266,226----[datamp][all]
232,266,829----[datamp][all]
302,267,781----[datamp][all]