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DATAMP Patents by Date for April 1935
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
21,996,550----[datamp][all]
91,996,825----[datamp][all]
161,997,966-D95,289--[datamp][all]
231,998,557----[datamp][all]
301,999,197----[datamp][all]