| 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 = '403') AND (category.subclass = '217') ORDER BY category ASC, date, patent, type |
Total of 3 patents found where: Class is '403'; Subclass is '217';
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 |
| Crossarm | ||||||
| U | 804,630 | November 14, 1905 | Support for Pole Crossarms Metal bracket to attach a wooden crossarm to the pole and to prevent the crossarm from moving up or down from horizontal and eliminate the need to mortise the pole. |
SHORT, Edward C. |
Crossarm | |
| Electrose | ||||||
| U | 786,691 | April 4, 1905 | Strain Electrose strain (Brown p. 69) |
STEINBERGER, Louis |
Electrose | |
| Weathervane | ||||||
| U | 185,272 | December 12, 1876 | Improvement in Couplings for Applying Weather Vane Pointers to Lightning Rods, &c. Coupling to attach weather vane to the lightning rod |
WESTON, James H. |
Weathervane | |
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