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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '427') AND (category.subclass = '376.2') ORDER BY last_name ASC, first_name, date, patent, type

Total of 3 patents found where: Class is '427'; Subclass is '376.2';

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T / S Patent Date Description Patentee Category Assigned To
 AUSTIN, Arthur O.
U 2,224,853 December 17, 1940 Method of Manufacturing Ceramic of Vitreous Ware
Manufacturing method to improve quality of porcelain during firing		 AUSTIN, Arthur O.
 Manufacturing The Ohio Brass Co.
 ROWLAND, Davidge H.
U 1,784,392 December 9, 1930 Manufacture of Insulators
Suspension insulator with glazed sanded surfaces to improve strength of cap		 ROWLAND, Davidge H.
 Suspension Locke Insulator Corp.
U 2,264,152 November 25, 1941 Method of Forming a Metallic Surface on Ceramic Bodies
RFI metallic coating that strongly adheres to the insulator		 ROWLAND, Davidge H.
 RFI Locke Insulator Corp.

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