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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 = '118') AND (category.subclass = '304') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '118'; Subclass is '304';

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T / S Patent Date Description Patentee Category Assigned To
 1958
U 2,821,158 January 28, 1958 Machine for Coating Bell-Shaped Electrical Suspension Insulators
Machine for automatically glazing suspension insulators and applying a sanded band for cementing the metal cap.		 BROWN, Leonard
MIGLIORINI, Vincent T.
LENZ, Carl
SMITLEY, Wayne C.
 Manufacturing General Electric Co.

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