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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 = '432') AND (category.subclass = '179') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '432'; Subclass is '179';

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T / S Patent Date Description Patentee Category Assigned To
 1922
U 1,432,706 October 17, 1922 Recuperator for Glass Furnaces and the Like
Glass furnace design
MCLAUGHLIN, William
McLaughlin 1/2 to Charles E. Norton

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