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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
 1887
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.		 DEWING, James
BENNETT, Delbert F.
 Piano Insulator  

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