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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Wedge') ORDER BY date ASC, patent, type

Total of 1 patents found where: Category is 'Wedge';

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T / S Patent Date Description Patentee Category Assigned To
 1884
U 296,485 April 8, 1884 Means for Supporting and Insulating Electrical Wires
Wedge block for side of pole or driven in hole in crossarm		 TRINGHAM, John Watson
 Wedge  

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