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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 = '16') AND (category.subclass = 'DIG.41') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '16'; Subclass is 'DIG.41';

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T / S Patent Date Description Patentee Category Assigned To
 1887
U 372,940 November 8, 1887 Insulating Joint
Glass ball to insulate a hanging lamp fixture from the support		 SODEN, Francis H.
GOEHST, Henry
 Insulating Joint  

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