| 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 = '403') AND (category.subclass = '379.3') ORDER BY date ASC, patent, type |
Total of 3 patents found where: Class is '403'; Subclass is '379.3';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1869 | ||||||
| U | 90,578 | May 25, 1869 | Improvement in Lightning Rod Couplings Coupling for lightning rods where the ends can be screwed together (see reissue 8,304) |
REYBURN, William S. HUNTER, Edmund A. W. |
Lightning Rod Coupling | |
| 1871 | ||||||
| U | 113,530 | April 11, 1871 | Improvement in Lightning Rods Lightning rods connected with a tubular metal dowel |
KING, Lewis |
Lightning Rod Coupling | |
| 1879 | ||||||
| U | 214,545 | April 22, 1879 | Improvement in Lightning Rod Couplings Lightning rod coupling with one tapered end to fit snugly in the other end (see reissue 9,145) |
BACON, Elmore C. |
Lightning Rod Coupling | |
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