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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 = '248') AND (category.subclass = '50') ORDER BY date ASC, patent, type

Total of 2 patents found where: Class is '248'; Subclass is '50';

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T / S Patent Date Description Patentee Category Assigned To
 1930
U Specimen known 1,755,971 April 22, 1930 Insulator
Neon, knob to support wires for neon sign (""spook"" insulator)		 SMALLEY, Robert C.
 Neon Claud Neon Lights, Inc.
 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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