|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 = '427') AND (category.subclass = '404') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Class is '427'; Subclass is '404';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||2,264,152||November 25, 1941||Method of Forming a Metallic Surface on Ceramic Bodies
RFI metallic coating that strongly adheres to the insulator
|ROWLAND, Davidge H.
||RFI||Locke Insulator Corp.|
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