| 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 = '174') AND (category.subclass = '187') ORDER BY specimen ASC, date, patent, type |
Total of 8 patents found where: Class is '174'; Subclass is '187';
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 |
| 1914 | ||||||
| U | 1,106,797 | August 11, 1914 | Electric Insulator Suspension insulators |
FAY, John L. WAY, Sylvester B. |
Suspension | |
| 1922 | ||||||
| U | 1,406,696 | February 14, 1922 | Self-Cooling Strain Insulator Electrose strain insulator |
STEINBERGER, Louis |
Strain | |
| U | 1,406,697 | February 14, 1922 | Self-Cooling Strain Insulator Electrose strain insulator |
STEINBERGER, Louis |
Strain | |
| 1923 | ||||||
| U | 1,447,359 | March 6, 1923 | Ventilated Line Insulator Electrose pintype insulator with holes in the center to ventilate and reduce heat |
STEINBERGER, Louis |
Electrose | |
| U | 1,468,042 | September 18, 1923 | Column Strain Insulator Electrose strain insulator |
STEINBERGER, Louis |
Strain | |
| U | 1,468,043 | September 18, 1923 | Insulator Supporting Pin Electrose pin |
STEINBERGER, Louis |
Pin | |
| U | 1,468,044 | September 18, 1923 | Line Insulator Metal thimble in Electrose pintype insulator and internal cavity to cool insulator |
STEINBERGER, Louis |
Electrose | |
| 1927 | ||||||
| U | 1,654,047 | December 27, 1927 | Strain Insulator Strain insulator with steel covering whereby the porcelain insulator is in compression |
LAPP, John S. |
Strain | Lapp Insulator Co. |
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