|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '52') AND (category.subclass = '292') ORDER BY specimen ASC, date, patent, type|
Total of 1 patents found where: Class is '52'; Subclass is '292';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||2,048,504||July 21, 1936||Tower Supporting Insulator
Insulator to support radio antenna tower
|HAWLEY, Kent A.
||Radio||Locke Insulator Corp.|
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