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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 = '152') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '152';

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T / S Patent Date Description Patentee Category Assigned To
 1917
U 1,231,090 June 26, 1917 Suspension Means for Strain Insulators
Link connectors for suspension disks		 STEINBERGER, Louis
 Suspension  

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