|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 = '361') ORDER BY date ASC, patent, type|
Total of 3 patents found where: Class is '403'; Subclass is '361';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||64,654||May 14, 1867||Improvement in Insulators
CD 732.2, threadless insulator with enlarged chamber for slotted pin (CJ 6-93-12)
|R||9,484||November 30, 1880||Telegraph Insulator
Hook with metal case secured to crossarm (see 75,889)
|FINN, John L.
||Hook||Amzi S. Dodd and Chinnock Electric Co.|
|U||1,625,266||April 19, 1927||Rod Coupling
Lightning rod made solid with parallel fins and connected by coupling with matching male and female threads crimped over the ends of the rod sections
|MAST, Charles O.
||Lightning Rod Coupling||Mast Lightning Rod Co.|
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