|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 = '106') AND (category.subclass = '782') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Class is '106'; Subclass is '782';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||271,994||February 6, 1883||Electrical Insulator
Method of treating steatite to make artificial lava insulation
|STEWARD, Demetrius M.
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