| 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 = '52') AND (category.subclass = '27') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Class is '52'; Subclass is '27';
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 |
| 1905 | ||||||
| U | 799,433 | September 12, 1905 | Support Fastener for Lightning Conductors Metal clips fitted in molded concrete or stone in order to secure lightning rod conductor to wall |
BAJOHR, Carl |
Lightning Rod Clip | |
| 1932 | ||||||
| U | 1,864,300 | June 21, 1932 | Anchor Device Metal attachment device for wireholders |
FORREST, Elbert E. |
Wireholder | Line Material Co |
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