| 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 = '65') AND (category.subclass = '159') ORDER BY date ASC, patent, type |
Total of 5 patents found where: Class is '65'; Subclass is '159';
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 |
| 1899 | ||||||
| U | 622,270 | April 4, 1899 | Machine for Making Hollow Glassware Glass Press that can be adapted for insulator manufacture |
ROWE, John T. |
Misc | |
| 1903 | ||||||
| U | 730,665 | June 9, 1903 | Glass Molding Machine Insulator Press |
KRIBS, Seraphin |
Press | |
| 1932 | ||||||
| U | 1,844,549 | February 9, 1932 | Glass Working Machine Press for making glass insulators |
HEADLEY, Benjamin T. DU BOIS, David Irvin KOOB, Bernard H. LOBB, Frank H. |
Press | Whitall Tatum Co. |
| 1936 | ||||||
| U | 2,052,343 | August 25, 1936 | Plastic Forming Apparatus Insulator press |
DU BOIS, David Irvin |
Press | Whitall Tatum Co. |
| 1941 | ||||||
| U | 2,238,198 | April 15, 1941 | Insulator Press Insulator press with multiple molds for pressing glass insulators |
WEBER, Walter C. |
Press | Corning Glass Works |
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