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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 = '403') AND (category.subclass = '289') ORDER BY date ASC, patent, type

Total of 2 patents found where: Class is '403'; Subclass is '289';

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T / S Patent Date Description Patentee Category Assigned To
 1867
U Specimen known 64,654 May 14, 1867 Improvement in Insulators
CD 732.2, threadless insulator with enlarged chamber for slotted pin (CJ 6-93-12)		 FLOYD, George
 Insulator  
 1910
U 945,213 January 4, 1910 Insulator Clamp
Bracket for pin that clamps around crossarm		 BLACKBURN, Jasper
 Bracket  

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