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DATAMP Patents by Date for December 1938
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
62,138,811----[datamp][all]
132,140,146----[datamp][all]
202,140,496-D112,666--[datamp][all]
272,141,263-D112,728--[datamp][all]