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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 = '127') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '174'; Subclass is '127';

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T / S Patent Date Description Patentee Category Assigned To
 1926
U 1,611,871 December 28, 1926 High Tension Installation
Use of flux control insulators and arcing horns on transmission lines		 AUSTIN, Arthur O.
 Transmission The Ohio Brass Co.

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