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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 (category = 'Ball') ORDER BY last_name ASC, first_name, date, patent, type

Total of 1 patents found where: Category is 'Ball';

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T / S Patent Date Description Patentee Category Assigned To
 HOOVER, Frank
U 575,952 January 26, 1897 Insulator
Ball insulator fit in hole in bottom of crossarm		 HOOVER, Frank
 Ball 2/3 to W. Bennett & D. Murrell

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