| 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 = '443.2') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Class is '427'; Subclass is '443.2';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1849 | ||||||
| U | 6,907 | November 27, 1849 | Improvement in Glazing Pottery-Ware Transparent and colored glaze for pottery and stone ware |
FENTON, Christopher W. |
Flint | |
| 1963 | ||||||
| U | 3,093,508 | June 11, 1963 | Method of Coating Glass Silicone coated glass that can be used for insulators |
WARTENBERG, Erwin W. |
Glass Coating | |
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