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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 = '264') AND (category.subclass = '296') ORDER BY date ASC, patent, type

Total of 3 patents found where: Class is '264'; Subclass is '296';

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T / S Patent Date Description Patentee Category Assigned To
 1875
U 167,608 September 14, 1875 Improvement in the Manufacture of Glassware
Lamp foot made by pushing up bottom
GILL, James C.
Lamp John Adams & Co.
 1930
U 1,779,811 October 28, 1930 Method of Manufacturing Insulators
Press for making skirts/petticoats in one-piece porcelain (replaces casting)
HARVEY, William F.
Press  
 1946
U 2,395,295 February 19, 1946 Method of Producing Insulators
Improved method of jiggering and plunging
ROWLAND, Davidge H.
Manufacturing  

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