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 = '148.1') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Class is '285'; Subclass is '148.1';
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 |
1865 | ||||||
U | 50,398 | October 10, 1865 | Lightning Rod Joints Lightning rods joined with slip joints |
SMITH, N. E. |
Lightning Rod Coupling | |
1909 | ||||||
U | 938,137 | October 26, 1909 | Lightning Rod Lightning rod coupling not made of copper but maintaining a copper contact |
GOETZ, Julius F. |
Lightning Rod Coupling |
Total of 0.00 seconds