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DATAMP Patents by Date for May 1929
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
71,712,087----[datamp][all]
141,712,484----[datamp][all]
211,713,527-D78,554--[datamp][all]
281,715,033----[datamp][all]