Patent Model - Improvement in Piano Sounding-Boards
Maker and role
Friedrich Niehaus, Patentee
Jun 16 1874
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9 1/2 x 12 x 1" (24.1 x 30.5 x 2.5cm)
Niehaus's patent "relates to sounding-boards for pianos or other stringed instruments having two or more bridges; and it consists in connecting the bridges by means of an equal number of counter-bridges on the under side of the sounding board..." (Patent Number 152,159)
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