| 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 = '52') AND (category.subclass = '697') ORDER BY date ASC, patent, type |
Total of 10 patents found where: Class is '52'; Subclass is '697';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1910 | ||||||
| U | 974,207 | November 1, 1910 | Insulator Support Bracket for 3-phase circuit using multipart insulator oriented in shape of > |
THOMPSON, Warren Ray |
Bracket | H. M. Byllesby & Co. |
| 1912 | ||||||
| U | 1,029,207 | June 11, 1912 | Insulator Support Crossarm composed of reinforced concrete |
MEGAHAN, Oliver P. |
Crossarm | |
| U | 1,047,176 | December 17, 1912 | Cross Arm Crossarm stamped out of sheet metal and easy to install |
CRABTREE, Lawrence L. RIPLEY, T. Charley |
Crossarm | |
| 1913 | ||||||
| U | 1,054,690 | March 4, 1913 | Electric Wire Supporting Device U-shaped block insulator fitted into slots in the crossarm to hold telegraph and telephone lines. |
HICKS, Henry A. |
Block | |
| 1916 | ||||||
| U | 1,175,077 | March 14, 1916 | Sheet Metal Pole Arm Crossarm made of sheet metal. |
PEIRCE, JR., Charles L. |
Crossarm | |
| U | 1,204,196 | November 7, 1916 | Adjustable Support for Insulators Pin made of two parts and loop on one end to clamp the insulator. |
SCHULZ, Rudolf W. |
Pin | |
| 1917 | ||||||
| U | 1,246,304 | November 13, 1917 | Support for Electric Conductors Bracket for 3 large insulators for pole top |
MUELLER, Otto HAMER, William D. |
Bracket | Electric Service Supplies Co. |
| 1920 | ||||||
| U | 1,362,038 | December 14, 1920 | Support for Electric Conductors Metal strap type support bracket for a pole top to support an insulator. |
PLIMPTON, Bentley A. |
Bracket | |
| 1921 | ||||||
| U | 1,381,838 | June 14, 1921 | Insulator Support Steel pins for crossarm made from one metal rod integral to the wooden crossarm and acts a braces for the crossarm. |
JACKSON, Berry B. |
Pin | |
| 1931 | ||||||
| U | 1,815,598 | July 21, 1931 | Insulating Member for High Tension Construction Wooden shaft with metal fittings to insulate guy wires on high voltage transmission poles |
STROUP, Charles L. |
Wood | |
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