Wooden frame for a grand piano
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United States of America Patent
Stats
-
Sep 15, 1987
Grant Date -
N/A
app pub date -
May 30, 1985
filing date -
Jun 8, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In construction of a wooden frame for a grand piano, rigidity of the bass range section of a curved frame is on purpose raised in order to make up for difference in rigidity which is otherwise unavoidably caused by configurational factors for balanced generation of beautiful tones over the entire tone ranges.
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