|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 = '38') AND (category.subclass = '90') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Class is '38'; Subclass is '90';
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||308,778||December 2, 1884||Composition for Making Non-Conducting Handles for Sad-Irons, &c.
Mixture of mica and glue to make solid non-conducting composition handles
|LEE, Charles Tennant
Total of 0.01 seconds