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

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

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T / S Patent Date Description Patentee Category Assigned To
 1923
U Specimen known 1,478,912 December 25, 1923 Insulator
Multipart with cement around lower edge of shell		 PLIMPTON, Bentley A.
 Multipart 1/2 to The Porcelain Insulator Co.

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