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DATAMP Patents by Date for June 1921
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
71,380,484-D58,117--[datamp][all]
141,381,457----[datamp][all]
211,381,900----[datamp][all]
281,382,611RE15,135---[datamp][all]