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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 = '169') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '169';

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T / S Patent Date Description Patentee Category Assigned To
 1872
U 128,534 July 2, 1872 Improvement in Combined Fire Extinguishers and Lightning Rods
Perforated water pipes running the crest of the building with lightning rods attached for the purpose of extinguishing a fire		 CARL, Nelson
 Lightning Rod Extinquisher 1/2 to Martin Baxter

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