|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 = '439') AND (category.subclass = '877') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Class is '439'; Subclass is '877';
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||1,808,595||June 2, 1931||Lightning Rod Coupler
Lightning rod coupling with either male or female threads that is square and fits over and crimped to end of rods
|CRIPE, Earnest C.
||Lightning Rod Coupling|
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