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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 = '235') AND (category.subclass = '1R') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '235'; Subclass is '1R';

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T / S Patent Date Description Patentee Category Assigned To
R 8,304 June 25, 1878 Improvement in Couplings for Lightning Rods
Coupling for lightning rods where the ends can be screwed together (see 90,578)
REYBURN, William S.
HUNTER, Edmund A. W.
Lightning Rod Coupling 1/2 of Hunter's right to Byron P. Moulton

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