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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 = '174') AND (category.subclass = '138H') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '174'; Subclass is '138H';

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T / S Patent Date Description Patentee Category Assigned To
 1938
U 2,112,995 April 5, 1938 Neon Tube Support
Metal support for neon glass rams horn insulator with adjustable height to support neon tubes.		 O'KEEFE, Cornelius P.
 Neon 1/2 to Albert H. Forgar

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