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DATAMP Patents by Date for September 1915
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
71,152,492----[datamp][all]
141,153,479----[datamp][all]
211,153,910-D47,855--[datamp][all]
281,154,905-D47,906--[datamp][all]