|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 = '432') AND (category.subclass = '191') ORDER BY date ASC, patent, type|
Total of 3 patents found where: Class is '432'; Subclass is '191';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||9,789||June 14, 1853||Manufacturing Glass
Glass furnace for burning coal
|BROOKFIELD, James M.
WHITE, Ephraim V.
|U||88,066||March 23, 1869||Improved Glass Furnace
Improved glass furnace with blower to remove fumes and improve the draught
|U||330,050||November 10, 1885||Furnace for Melting Glass, &c.
A glass-melting furnace with a rectangular tank and bottom composed of beveled stone. Patent was used by the Cadiz Glass Co.
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