| 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 = '271.1') ORDER BY date ASC, patent, type |
Total of 3 patents found where: Class is '264'; Subclass is '271.1';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1920 | ||||||
| U | 1,348,248 | August 3, 1920 | Disk Suspension Insulator Suspension, Electrose similar to Hewlett |
STEINBERGER, Louis |
Suspension | |
| 1933 | ||||||
| U | 1,925,211 | September 5, 1933 | Art of Assembling Insulators Method of cementing pin in suspension insulator to remove air |
SMITH, William A. |
Suspension | The Ohio Brass Co. |
| 1962 | ||||||
| U | 3,054,704 | September 18, 1962 | Insulator Assembly Method and Apparatus Suspension, method of sealing cement to improve strength during curing |
RUOFF, George M. |
Suspension | A. B. Chance Co. |
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