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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 = '427') AND (category.subclass = '425') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '427'; Subclass is '425';

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T / S Patent Date Description Patentee Category Assigned To
 1959
U 2,867,551 January 6, 1959 Apparatus and Method for Applying Conductive Coatings to Insulators
Radio treatment process for CD 239		 KOZAK, John
 RFI Owens-Illinois Glass Co.

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