| 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 = '285') AND (category.subclass = '330') ORDER BY date ASC, patent, type |
Total of 4 patents found where: Class is '285'; Subclass is '330';
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 |
| 1871 | ||||||
| U | 113,869 | April 18, 1871 | Improvement in Lightning Rods Coupling for tubular lightning rods made of a lap or scarf joint |
GAYLORD, Albert A. |
Lightning Rod Coupling | |
| 1873 | ||||||
| U | 139,841 | June 10, 1873 | Improvement in Coupling Tubular Lightning Rods Means of coupling tubular lightning rods |
WESTON, James H. |
Lightning Rod | |
| U | 145,641 | December 16, 1873 | Improvement in Couplings for Tubular Lightning Rods Means of coupling tubular lightning rods |
FRITSCH, Joseph W. |
Lightning Rod | |
| U | 145,851 | December 23, 1873 | Improvement in Lightning Rods Lightning rod made of tubular metal with annular corregations on each end that fitted together to connect two rod sections |
DREW, Joseph |
Lightning Rod | |
Total of 0.00 seconds