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 = '257') AND (category.subclass = 'E21.454') ORDER BY patent ASC, type |
Total of 1 patents found where: Class is '257'; Subclass is 'E21.454';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1878 | ||||||
U | 208,487 | October 1, 1878 | Bottle Stopper Bottle stopper |
OAKMAN, Samuel |
Bottle |
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