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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 = 'WALKER') AND (first_name = 'Oral B.') ORDER BY date ASC, patent, type

Total of 1 patents found where: Last Name is 'WALKER'; First Name is 'Oral B.';

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T / S Patent Date Description Patentee Category Assigned To
 1912
U 1,032,715 July 16, 1912 Insulator
Crossarms formed from metal pipe with insulators molded on the metal pins		 WALKER, Oral B.
 Crossarm  

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