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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '219') AND (category.subclass = '98') ORDER BY specimen ASC, date, patent, type

Total of 1 patents found where: Class is '219'; Subclass is '98';

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T / S Patent Date Description Patentee Category Assigned To
 1958
U 2,857,505 October 21, 1958 Method of welding TV tube studs
Stud Welding Apparatus
SMITH, Ralph H.
OI Owens-Illinois Glass Co.

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