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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Horn') ORDER BY date ASC, patent, type

Total of 2 patents found where: Category is 'Horn';

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T / S Patent Date Description Patentee Category Assigned To
U 1,227,680 May 29, 1917 Method of Screw-Threading Articles Made of Horn
Method of threading insulators made of animal horn (see 1,333,188)
SEGRE, Mario
U 1,333,188 March 9, 1920 Manufacture of Hollow Articles from Horn
Manufacture of insulators from animal horn (see 1,227,680)
SEGRE, Mario

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