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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 assigned_to ASC, date, 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.
Furnace  
U 88,066 March 23, 1869 Improved Glass Furnace
Improved glass furnace with blower to remove fumes and improve the draught
OAKMAN, Samuel
Furnace  
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.
PEARSON, Edward
KITSON, John
Glass Furnace  

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