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 = '144') AND (category.subclass = '237') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '144'; Subclass is '237';
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 |
1907 | ||||||
U | 840,369 | January 1, 1907 | Automatic Lathe Insulator pin threading device |
PRINGLE, George W. |
Pin | E. J. Noblett |
Total of 0.00 seconds