| 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 = '469') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Class is '425'; Subclass is '469';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1906 | ||||||
| U | 838,727 | December 18, 1906 | Die for Forming Insulators Press to form petticoats - improvement on 716,343 (see reissue 12,934 on 6-4-1909) |
LOCKE, Fred M. |
Press | |
| 1916 | ||||||
| U | 1,198,732 | September 19, 1916 | Plunger for Forming Insulators Plunger with holes to release pressure (see 838,727 and reissue 12,934) |
LOCKE, Louis Peer |
Plunger | Locke Insulator Mfg. Co. |
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