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DATAMP Patents by Date for December 1927
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
61,651,382----[datamp][all]
131,652,401----[datamp][all]
201,653,048RE16,820---[datamp][all]
271,653,762----[datamp][all]