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 = '403') AND (category.subclass = '180') ORDER BY patent DESC, type |
Total of 2 patents found where: Class is '403'; Subclass is '180';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1931 | ||||||
U | 1,794,934 | March 3, 1931 | Insulator Connector Bracket for strain insulator |
WALBERG, Nils A. |
Bracket | Westinghouse Electric & Mfg. Co. |
1925 | ||||||
U | 1,558,268 | October 20, 1925 | Coupling for Sectional Rods Lightning rod coupling the fits over spiralled rods and crimps tight against the end and screws to other couplings (see 1,140,052) |
MAST, Louis L. |
Lightning Rod Coupling |
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