| 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 = '425') AND (category.subclass = 'DIG.35') ORDER BY description ASC, date, patent, type |
Total of 2 patents found where: Class is '425'; Subclass is 'DIG.35';
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 |
| 1892 | ||||||
| U | 474,496 | May 10, 1892 | Apparatus for Molding Earthenware, &c. Press to form lateral indentions or wire grooves around the side of the insulator to such as for standard porcelain knobs |
CROSSLEY, Joseph |
Press | |
| 1947 | ||||||
| U | 2,415,462 | February 11, 1947 | Ceramic Molding Press Vacuum molding of clay articles such as insulators. This may be the patent used by Locke to make their ""vacuum dry pressing"" porcelain insulators. |
CHERRY, George L. VEALE, Charles C. |
Press | Western Electric Co. |
Total of 0.01 seconds