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DATAMP Patents by Date for April 1932
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
51,852,075----[datamp][all]
121,853,245----[datamp][all]
191,854,242----[datamp][all]
261,855,174RE18,443---[datamp][all]