| 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 = '403') AND (category.subclass = '400') ORDER BY date ASC, patent, type |
Total of 3 patents found where: Class is '403'; Subclass is '400';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1895 | ||||||
| U | 550,673 | December 3, 1895 | Crossover Insulator Crossover knob |
BERON, Frank G. |
Crossover | 1/2 to James Gaffney |
| 1908 | ||||||
| U | 887,896 | May 19, 1908 | Tie Wire Clamp Cable clamp to hold conductor in top groove of insulator consisting of two flat metal strips with eyelets on each end to receive the cable clamp |
WRIGLEY, George |
Cable Clamp | |
| 1951 | ||||||
| U | 2,564,340 | August 14, 1951 | Clamp for Electrical Conductors Metal clamp to secure the conductor to the bottom of the string of suspension insulators |
OSBORNE, David H. |
Suspension | Porcelain Insulator Co. |
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