| 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 = '57') AND (category.subclass = '14') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Class is '57'; Subclass is '14';
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 |
| 1899 | ||||||
| U | 630,334 | August 8, 1899 | Machine for Making Lightning Rods Machine for making lightning rods that are easily bent to aid in installation |
DODD, West |
Lightning Rod Machine | |
| 1908 | ||||||
| U | 887,277 | May 12, 1908 | Machine for Making Cable Lightning Rods Machine for making cable conductors that is a cable within a cable for greatest flexibility and conduction |
SHINN, William C. |
Lightning Rod Machine | |
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