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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 = 'ENSIGN') AND (first_name = 'George A.') ORDER BY date ASC, patent, type

Total of 1 patents found where: Last Name is 'ENSIGN'; First Name is 'George A.';

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T / S Patent Date Description Patentee Category Assigned To
 1904
U 751,841 February 9, 1904 Thread Cutting Machine
Insulator pin threading device
ENSIGN, George A.
Pin Defiance Machine Works

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