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 = '248') AND (category.subclass = '228.5') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Class is '248'; Subclass is '228.5';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1909 | ||||||
U ![]() |
928,010 | July 13, 1909 | Cross Arm Fitting and Insulator Support Steel bracket that fits and clamps around the crossarm, specimens manufactured by St. Louis Malleable Casting Co., St. Louis, MO |
WAY, Sylvester B. |
Bracket | |
1920 | ||||||
U | 1,333,420 | March 9, 1920 | Insulator Bracket Bracket that fits around crossarm to support egg-shaped insulators |
ILES, Charley S. |
Bracket |
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