|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 = '215') AND (category.subclass = '13.1') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Class is '215'; Subclass is '13.1';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||189,682||April 17, 1877||Improvement in Oil Cans
Glass lined oil can (see reissue 8,600 on 2-25-1879)
|BARTELS, William H.
||HU||1/2 to George T. Hunsaker|
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