|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 = '174') AND (category.subclass = '130') ORDER BY date ASC, patent, type|
Total of 3 patents found where: Class is '174'; Subclass is '130';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||30,560||November 6, 1860||Improvement in Lightning Rods
Lightning rod made up of continuous strips or tubes of metal
|U||173,963||February 22, 1876||Improvement in Lightning Rods
Lightning rod with solid supporting rod fitted inside and screwed into the rod coupling on each end
PRICE, David A.
|Lightning Rod||Reyburn, Hunter & Co.|
|R||7,063||April 18, 1876||Improvement in Lightning Conductors, Rods, or Cables
Lightning rod conductor made of wires twisted together and wrapped and twisted around a metal tube (see 120,457)
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