Keyboard musical instrument having keys regulated with...

Details Keyboard musical instrument having keys regulated with... Keyboard musical instrument having keys regulated with...

2006-10-31

2006-10-31

Donovan, Lincoln (Department: 2837)

Music

Instruments

General features

C084S439000, C084S243000

Reexamination Certificate

active

07129404

ABSTRACT:
A key is an indispensable component parts of an acoustic or electronic keyboard musical instrument, and key balancers are embedded in the key for varying the moment exerted on the key; the key balancers are fastened to the key by means of an anchor so that the key balancers are neither chattered in nor dropped out from the key.

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