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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (assigned_to = 'Porcelain Insulator Co.') ORDER BY date ASC, patent, type

Total of 1 patents found where: Assigned To is 'Porcelain Insulator Co.';

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T / S Patent Date Description Patentee Category Assigned To
 1951
U 2,564,340 August 14, 1951 Clamp for Electrical Conductors
Metal clamp to secure the conductor to the bottom of the string of suspension insulators		 OSBORNE, David H.
 Suspension Porcelain Insulator Co.

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