|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Piano Insulator') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Category is 'Piano Insulator';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||373,393||November 15, 1887||Tool for Cutting Seats for Insulator Attachments for Musical Instruments
Tool for cutting circular slot in piano legs in order to insert the piano insulator.
BENNETT, Delbert F.
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