| 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 = '274') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Class is '264'; Subclass is '274';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1909 | ||||||
| U | 941,032 | November 23, 1909 | Process of Manufacturing Insulators Press to mold and produce composition strain insulator |
MCCARTHY, Louis |
Press | The Macallen Co. |
| 1923 | ||||||
| U | 1,446,067 | February 20, 1923 | Method of Connecting Insulator Units Suspension, method of cementing pin |
REAGAN, Frank H. |
Suspension | Locke Insulator Corp. |
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