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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 = '228') AND (category.subclass = '207') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '228'; Subclass is '207';

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T / S Patent Date Description Patentee Category Assigned To
 1925
U 1,544,148 June 30, 1925 Method of Connecting Insulators
Multipart, method of cementing sections with solder		 GOUVERNEUR, Minor F. H.
 Multipart Locke Insulator Corp.

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