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 = '254') AND (category.subclass = '389') ORDER BY description DESC, date, patent, type |
Total of 1 patents found where: Class is '254'; Subclass is '389';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1954 | ||||||
U | 2,684,228 | July 20, 1954 | Electric Line Stringing Device Metal shaped like an open circle mounted temporarily on a corner pin to allow easy stringing of the line without possible injury to linemen. |
DION, Francois Emile |
Miscellaneous |
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