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 category ASC, date, 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 |
Manufacturing | ||||||
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. |
Manufacturing | |
U | 2,395,295 | February 19, 1946 | Method of Producing Insulators Improved method of jiggering and plunging |
ROWLAND, Davidge H. |
Manufacturing |
Total of 0.00 seconds