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DATAMP Patents by Date for July 1939
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
42,164,621-D115,575--[datamp][all]
112,165,285----[datamp][all]
182,166,165-D115,779--[datamp][all]
252,166,940-D115,882--[datamp][all]