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 = '373') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '427'; Subclass is '373';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1941 | ||||||
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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