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 = '65') AND (category.subclass = '349') ORDER BY category ASC, date, patent, type |
Total of 2 patents found where: Class is '65'; Subclass is '349';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
Glass | ||||||
U | 157,717 | December 15, 1874 | Improvement in Tempering Glass, and Furnaces Therefor Tempering glass by dropping into oil (see patent 169,783) |
LA BASTIE, Francois B. A. Royer de |
Glass | |
U | 169,783 | November 9, 1875 | Improvement in Tempering Glass, and Furnaces Therefor Method of transferring glass to be tempered (see patent 157,717) |
LA BASTIE, Francois B. A. Royer de |
Glass |
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