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DATAMP Patents by Date for December 1956
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
42,772,709----[datamp][all]
112,773,471----[datamp][all]
182,774,198----[datamp][all]
252,775,146----[datamp][all]