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Start Over Partner UNT Libraries Government Documents Department Counties Gregg County, TX Decade 1870-1879 Day 25th

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Improvement in Devices for Teaching Musical Transposition. (open access)

Improvement in Devices for Teaching Musical Transposition.

Patent for an improvement in devices for teaching musical transposition. The invention in question is composed of a keyboard "with sliding instruments and scales" (1).
Date: April 25, 1876
Creator: Allison, Thomas J.
System: The Portal to Texas History