|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|
|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.|
|U||1,029,207||June 11, 1912||Insulator Support
Crossarm composed of reinforced concrete
|MEGAHAN, Oliver P.
|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
|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.
|U||1,175,077||March 14, 1916||Sheet Metal Pole Arm
Crossarm made of sheet metal.
|PEIRCE, JR., Charles L.
|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.
|U||1,246,304||November 13, 1917||Support for Electric Conductors
Bracket for 3 large insulators for pole top
HAMER, William D.
|Bracket||Electric Service Supplies Co.|
|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.
|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.
|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.
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