|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 = '411') AND (category.subclass = '400') ORDER BY specimen DESC, date, patent, type|
Total of 3 patents found where: Class is '411'; Subclass is '400';
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||419,642||January 21, 1890||Insulator for Electric Wires
Split ring with split ring holder and lag screw
|CORNOG, Isaac P.
|U||441,849||December 2, 1890||Electric Line Hook
Hook made of iron to secure line wire with threaded end to screw in crossarm
|LOCKE, Fred M.
|Hook||1/3 to Theodore Norton|
|U||1,201,295||October 17, 1916||Insulator Support
Pin, cast metal with lag screw
|HENDEE, Lem E.
Total of 0.00 seconds