|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 = '104') ORDER BY specimen ASC, date, patent, type|
Total of 2 patents found where: Class is '104';
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||445,008||January 20, 1891||Insulator
Protective shield for trolley hanger insulator
|U||796,501||August 8, 1905||Conductor Rail Holder for Electric Railways
Third rail insulator and metal clips and rail holder
|COURTENAY, George L.
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