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 = '428') AND (category.subclass = '702') ORDER BY last_name ASC, first_name, date, patent, type |
Total of 1 patents found where: Class is '428'; Subclass is '702';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
DYKSTRA, Laurence J. MEYER, Edwin M. | ||||||
U | 2,274,955 | March 3, 1942 | High Tension Electric Insulator and Method of Coating Same RFI: antimony coated top |
DYKSTRA, Laurence J. MEYER, Edwin M. |
RFI | Victor Insulators, Inc. |
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