| 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 = '174') AND (category.subclass = '40R') ORDER BY date ASC, patent, type |
Total of 6 patents found where: Class is '174'; Subclass is '40R';
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 |
| 1882 | ||||||
| U | 258,005 | May 16, 1882 | Balloon Support for Telegraph Wires, &c. Gas balloon as a substitute for poles to support telegraph wires, light towers, and flags |
BEESON, William |
Balloon | |
| 1891 | ||||||
| U | 461,109 | October 13, 1891 | Device for Stretching Heavy Wires on Poles Mechanical device mounted on the crossarm with a roller to aid in stretching wires before they are attached to insulators. |
BALL, Henry Price |
Wire Stretcher | Edison General Electric Co. |
| 1912 | ||||||
| U | 1,033,019 | July 16, 1912 | Insulator Cover for bridle wire drop |
JEWETT, Frank B. |
Miscellaneous | American Telephone & Telegraph Co. |
| 1918 | ||||||
| U | 1,280,172 | October 1, 1918 | Insulator Protector Protective shield surrounding the insulator to protect it from damage. |
CULLIGAN, Charles A. |
Protective Shield | |
| 1928 | ||||||
| U | 1,687,535 | October 16, 1928 | Reduction of Losses in Insulators, Pins, and Cross Arms Carrier circuit insulator with specific diameter/pin ratio |
AFFEL, Herman A. GREEN, Estill I. |
Carrier | American Telephone & Telegraph Co. |
| 1929 | ||||||
| U | 1,700,166 | January 29, 1929 | Insulator for Bridle Wires Dry-spot using coke bottle top & cap |
JOHNSON, Benjamin |
Dry-spot | American Telephone & Telegraph Co. |
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