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 = '116') AND (category.subclass = '174') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '116'; Subclass is '174';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1901 | ||||||
U | 674,792 | May 21, 1901 | Revolving Truck for Flag Poles Lightning rod in combination with a revolving rope guide |
MCGRATH, Sylvester S. LAWLOR, John J. |
Lightning Rod |
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