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DATAMP Patents by Date for April 1900
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
3646,414-D32,458--[datamp][all]
10647,311----[datamp][all]
17647,522----[datamp][all]
24647,937-D32,585--[datamp][all]