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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 = '65') AND (category.subclass = '60.51') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '65'; Subclass is '60.51';

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T / S Patent Date Description Patentee Category Assigned To
 1938
U Specimen known 2,118,795 May 24, 1938 Insulator
RFI: tin iridized coating to reduce water adherence, radio interference, and reflect sun		 LITTLETON, Jesse T.
 RFI Corning Glass Works

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