|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Dead-end') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Category is 'Dead-end';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||1,290,147||January 7, 1919||Dead End for Electric and Telephone Wires
Dead-ending method using two strain insulators
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