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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (last_name = 'FEIGERT') AND (first_name = 'Frederick A.') ORDER BY date ASC, patent, type

Total of 1 patents found where: Last Name is 'FEIGERT'; First Name is 'Frederick A.';

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T / S Patent Date Description Patentee Category Assigned To
 1907
U 843,739 February 12, 1907 Electric Insulator
Insulator used on trolley arms to support carrier wire that fits inside a metal case in the support crossarm		 FEIGERT, Frederick A.
 Insulator  

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