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DATAMP Patents by Date for May 1933
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
21,906,454----[datamp][all]
91,907,459-D89,818--[datamp][all]
161,908,938RE18,832D89,897--[datamp][all]
231,910,096----[datamp][all]
301,911,471-D90,008--[datamp][all]