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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 = '264') AND (category.subclass = '249') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '264'; Subclass is '249';

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T / S Patent Date Description Patentee Category Assigned To
 1923
U 1,456,960 May 29, 1923 Joint for Articles of Ceramic and Similar Materials and Method of Producing Same
Multipart joined by sand, glaze-welding and/or differential shrinkage		 AUSTIN, Arthur O.
 Multipart The Ohio Brass Co.

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