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DATAMP Patents by Date for April 1956
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
32,740,238-D177,350--[datamp][all]
102,741,070----[datamp][all]
172,742,063----[datamp][all]
242,742,741----[datamp][all]