| 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 = '230.1') ORDER BY date ASC, patent, type |
Total of 3 patents found where: Class is '248'; Subclass is '230.1';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1907 | ||||||
| U | 871,490 | November 19, 1907 | Insulator Pin Mounting Mounting for hollow steel pin on a steel tower |
DUNCAN, John D. E. |
Pin | |
| 1916 | ||||||
| U | 1,175,849 | March 14, 1916 | Insulator Base miscellaneous circular holder with metal support |
WARREN, Frederic A. |
Miscellaneous | |
| 1940 | ||||||
| U | 2,222,810 | November 26, 1940 | Clamp for Connecting an Insulator to a Post Electric fence with bracket to attach an easily adjustable insulator to a T-post |
DAILY, Floyd H. |
Fence | |
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