|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Engraving') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Category is 'Engraving';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||108,408||October 18, 1870||Improvement in Cutting and Engraving Stone, Metal, Glass &c.
Method of sandblashing to cut or engrave
|TILGHMAN, Benjamin C.
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