SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (category = 'Rough') ORDER BY last_name ASC, first_name, date, patent, type |
Total of 1 patents found where: Category is 'Rough';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
FARMER, Moses G. | ||||||
U | 129,724 | July 23, 1872 | Improvement in Insulators for Telegraphic Uses Roughened lower surface of insulator to retain patented coating mixture |
FARMER, Moses G. |
Rough |
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