|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'U-186') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Category is 'U-186';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||1,251,416||December 25, 1917||Insulator
|PURKEY, Benjamin S.
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