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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 = '29') AND (category.subclass = '564.1') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '29'; Subclass is '564.1';

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T / S Patent Date Description Patentee Category Assigned To
 1875
U 161,541 March 30, 1875 Improvement in Machines for Making Lightning Rods
Machine for making lightning rods (see reissue 8,696)		 MUNN, William B.
 Lightning Rod Machine  

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