Keyboard lid, its open-close structure and arm members for keyed instrument
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United States of America Patent
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Jul 4, 1995
Grant Date -
N/A
app pub date -
Feb 12, 1993
filing date -
Mar 9, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A keyboard lid comprising a lid body and a frame plate attached to the edge of the lid body for reinforcing it in which said frame plate has a decoration plate arranged at the outside of said lid body and a reinforcing plate arranged at the inside of said lid body and that said decoration plate and said reinforcing plate are formed separately with each other.
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