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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 = '261') AND (category.subclass = 'DIG39') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '261'; Subclass is 'DIG39';

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T / S Patent Date Description Patentee Category Assigned To
 1910
U 966,882 August 9, 1910 Attachment of Telegraph and similar Line Wires to Insulators
Tie wire clip		 BANDFIELD, William E.
 Tie Wire  

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