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DATAMP Patents by Date for April 1892
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
5472,061----[datamp][all]
12472,517----[datamp][all]
19472,977----[datamp][all]
26473,542----[datamp][all]