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DATAMP Patents by Date for April 1890
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
1424,471RE11,068D19,745--[datamp][all]
8424,977----[datamp][all]
15425,398----[datamp][all]
22426,001----[datamp][all]
29426,474----[datamp][all]