|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 = '29') AND (category.subclass = '453') ORDER BY date ASC, patent, type|
Total of 2 patents found where: Class is '29'; Subclass is '453';
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||64,654||May 14, 1867||Improvement in Insulators
CD 732.2, threadless insulator with enlarged chamber for slotted pin (CJ 6-93-12)
|U||3,116,362||December 31, 1963||Insulating Bushing Assembly with Spring Retaining Means
Porcelain bushing with a retaining spring.
|RANKIN, Lawrence H.
||Bushing||The Hartford Faience Co.|
Total of 0.00 seconds