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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 = '248') AND (category.subclass = '224.7') ORDER BY date ASC, patent, type

Total of 2 patents found where: Class is '248'; Subclass is '224.7';

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T / S Patent Date Description Patentee Category Assigned To
 1909
U 937,984 October 26, 1909 Insulator Bracket
Bracket to mount insulator in mortar between bricks		 BROWN, Edward V.
 Bracket 1/2 to Adolph Day
 1944
U 2,345,404 March 28, 1944 Reinforced Insulator Pin
Steel pin with sheet metal reinforcing down to crossarm to provide bracing against horizontal strain		 MACK, Edward A.
 Pin Oliver Iron & Steel Corp.

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