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 = '428') AND (category.subclass = '605') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '428'; Subclass is '605';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1881 | ||||||
U | 243,630 | June 28, 1881 | Lightning Rod Lightning rod composed of a zinc tube covered with copper surrounded by twisted spiraling tubes of the same combination |
SCHOONMAKER, James H. |
Lightning Rod | 4/5 to H. D. Morse and N. C. Gault |
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