SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '439') AND (category.subclass = '809') ORDER BY last_name ASC, first_name, date, patent, type |
Total of 1 patents found where: Class is '439'; Subclass is '809';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
BAKER, George | ||||||
U | 1,014,934 | January 16, 1912 | Insulator Knob Knob |
BAKER, George |
Knob |
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