|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 = '110R') ORDER BY assigned_to ASC, date, patent, type|
Total of 3 patents found where: Class is '174'; Subclass is '110R';
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||75,815||March 24, 1868||Improvement in Insulators for Telegraphs
Earthenware insulator, cemented galvanized pin coated with paraffin (Brown p. 57)
|VARLEY, Cromwell F.
|U||271,994||February 6, 1883||Electrical Insulator
Method of treating steatite to make artificial lava insulation
|STEWARD, Demetrius M.
|Western Union Telegraph Co.|
|U||3,061,667||October 30, 1962||Telegraph Pole Line Insulator
Rubber pin type insulator (Brown p. 91)
|MARKLEY, William F.
SLATER, James L.
|Rubber||Western Union Telegraph Co.|
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