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

Total of 2 patents found where: Assigned To is 'Pittsburg High Voltage Insulator Co.';

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T / S Patent Date Description Patentee Category Assigned To
 1910
U 954,490 April 12, 1910 Machine for Threading Porcelain Insulators
Machine to form threads in wet process porcelain		 YOUNG, George F.
 Thread Pittsburg High Voltage Insulator Co.
 1917
U 1,237,843 August 21, 1917 Insulator Support for Towers
An insulator to support radio antenna towers composed of a metal base and several porcelain sections that are cemented together.		 WARD, John W.
 Antenna Support Pittsburg High Voltage Insulator Co.

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