| 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 = '151') ORDER BY specimen ASC, date, patent, type |
Total of 3 patents found where: Class is '174'; Subclass is '151';
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 |
| 1898 | ||||||
| U | 615,896 | December 13, 1898 | Vacuum Insulator for Electric Conductors Wall tube sealed in vacuum and protected from weather (see 608,906) |
POCHE, Joseph Arthur |
Wall Tube | |
| 1902 | ||||||
| U | 698,097 | April 22, 1902 | Electrical Insulator Bushing and bracket to support conductor cable |
BALL, Henry Price |
Bushing | General Incandescent Light Co. |
| 1910 | ||||||
| U | 979,840 | December 27, 1910 | Insulator Base Insulator base to support a high voltage insulator on a building roof to allow the conductor to enter the roof |
GODDARD, Walter T. |
Insulator Base | Locke Insulator Mfg. Co. |
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