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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 = '215') AND (category.subclass = '399') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '215'; Subclass is '399';

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T / S Patent Date Description Patentee Category Assigned To
 1876
U 178,504 June 13, 1876 Improvement in the Manufacture of Glassware
Mold for glass wall pocket		 BECK, Washington
 HU  

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