Patent Model - Improvement in Tuning-Pins for Pianos, &c.
Maker and role
Julius Branig, Patentee
Aug 03 1875
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2 x 12 x 2" (5.1 x 30.5 x 5.1cm)
The object of Branig's patent "is to enable the tuning-pins of a piano or other instrument to be firmly secured in place in such a way that they may be detached and again inserted with-out loosening them or injuring their screw-threads." (Patent Number 166,253)
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