Upright piano

Details Upright piano Upright piano

1985-04-30

1987-02-10

Fuller, Benjamin R.

Music

Instruments

General features

84177, 84186R, 84DIG3, G10C 312

Patent

active

046415653

ABSTRACT:
In construction of a keyboard unit accommodable upright piano, a vertically turnable keyboard is held by a holder unit so that the keyboard unit can be stably held in a horizontal position at one state of the holder unit and easily be accommodated in the main casing at the other state of the holder unit.

REFERENCES:
patent: 1827096 (1931-10-01), Morse
patent: 4376402 (1983-03-01), Helpinstill, II
patent: 4550638 (1985-11-01), Kaneko et al.

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