|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 = '313') AND (category.subclass = '268') ORDER BY date ASC, patent, type|
Total of 5 patents found where: Class is '313'; Subclass is '268';
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|
|U||1,055,322||March 11, 1913||Insulator
Holes (2) through insulator to pin allows lightning to pass to pin & ground
|DE LONG, Harry A.
|U||1,198,137||September 12, 1916||Insulator
Suspension insulator with an outer covering of spun steel or iron.
|LINCOLN, Paul M.
||Suspension||Westinghouse Electric & Mfg. Co.|
|U||1,273,015||July 16, 1918||Electric Insulator
Suspension made of several parts bolted together
|THOMAS, Percy H.
|U||1,277,304||August 27, 1918||Metal Protected High Voltage Insulator
Protective shield of metal to protect insulator
|U||1,283,651||November 5, 1918||Lightning Arrester
Lightning arrester with hole through top of insulator similar to U-70.
|BUCHANAN, Sutton R.
Total of 0.00 seconds