|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 = '264') AND (category.subclass = '71') ORDER BY date ASC, patent, type|
Total of 2 patents found where: Class is '264'; Subclass is '71';
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||1,574,883||March 2, 1926||Method and Apparatus for Cementing Insulators
Machine to vibrate insulator to improve cementing of the parts
|HARVEY, William F.
|U||2,395,295||February 19, 1946||Method of Producing Insulators
Improved method of jiggering and plunging
|ROWLAND, Davidge H.
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