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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 = '69') ORDER BY date ASC, patent, type

Total of 5 patents found where: Class is '264'; Subclass is '69';

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T / S Patent Date Description Patentee Category Assigned To
U 1,693,429 November 27, 1928 Method of Casting
Manufacturing method to cast bushings with a hollow core
AUSTIN, Arthur O.
Manufacturing The Ohio Brass Co.
U 1,699,063 January 15, 1929 Method of Making Insulators
Suspension insulator, method to attach skirts to a central shank
Suspension Locke Insulator Corp.
U 1,717,996 June 18, 1929 Means for and Method of Making Insulators
Press method of molding porcelain insulator with vibration improves quality (Hewlett)
MOORE, JR., Stewart L.
Press Locke Insulator Corp.
U 1,719,989 July 9, 1929 Method of and Apparatus for Assembling Insulators
Method of assembling the shells, holding downward pressure, and vibrating to settle cement around the shells to eliminate air
MOORE, JR., Stewart L.
Manufacturing Locke Insulator Corp.
U 3,923,570 December 2, 1975 Manufacture of Insulators
Method of cementing suspension insulators using thick cement and high intensity vibrations
WILLEM, Michel
Suspension Societe Europeene d'Isolateurs en Verre (SEDIVER)

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