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 = '228') AND (category.subclass = '205') ORDER BY specimen ASC, date, patent, type |
Total of 1 patents found where: Class is '228'; Subclass is '205';
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 |
1869 | ||||||
U | 86,151 | January 26, 1869 | Improved Mode of Constructing Lightning Rods Method of welding galvanized and copper wires to form a lightning rod |
HAMILTON, G. B. STEVENES, J. S. |
Lightning Rod |
Total of 0.01 seconds