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DATAMP Patents by Date for April 1911
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
4988,506-D41,287--[datamp][all]
11989,035----[datamp][all]
18989,625----[datamp][all]
25990,316----[datamp][all]