UPRIGHT PIANO
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United States of America Patent
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Issued Date -
May 16, 2019
app pub date -
Nov 9, 2018
filing date -
Nov 9, 2018
priority date (Note) -
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Abstract
An upright piano includes an internal space enclosed by a case including an upper front board disposed above a key bed and a lower front board disposed below the key bed, and a resonance tube in which a hollow region having an opening is formed and that is disposed in the internal space, in which the opening is disposed at the left end of the lower end of the upper front board or the upper end of the lower front board, or at the right end of the lower end of the upper front board or the upper end of the lower front board.
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