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 = '414') AND (category.subclass = '197') ORDER BY assigned_to ASC, date, patent, type |
Total of 1 patents found where: Class is '414'; Subclass is '197';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
U | 826,139 | July 17, 1906 | Device for Mixing Ingredients for Making Glass and for Feeding them to Furnaces Mixer for mixing ingredients for glass insulators |
BROOKFIELD, Henry M. |
Mixer |
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