|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 = '493') AND (category.subclass = '297') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Class is '493'; Subclass is '297';
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||1,159,798||November 9, 1915||Insulating Tube
Tubes (insulating) made by winding long strips of paper (machine for making)
|REYNDERS, Arthur B.
||Wall Tube||Westinghouse Electric & Mfg. Co.|
Total of 0.00 seconds