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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (category = 'Roof') ORDER BY last_name DESC, first_name, date, patent, type

Total of 1 patents found where: Category is 'Roof';

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T / S Patent Date Description Patentee Category Assigned To
 STOTZ, Hugo
U 851,705 April 30, 1907 Insulator
Roof entry insulator
STOTZ, Hugo
Roof  

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