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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 = 'D14') AND (category.subclass = '230') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is 'D14'; Subclass is '230';

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T / S Patent Date Description Patentee Category Assigned To
 1938
U 2,135,344 November 1, 1938 Transposed Lead-In
Transposition for radio line		 JOHNSTON, Fred E.
 Transposition Crosley Radio Corp.

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