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 = '242') ORDER BY date ASC, patent, type |
Total of 1 patents found where: Class is '242';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
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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