Keyboard attachments

Music – Accessories – Producing color or light effects

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Details

84478, A63J 1700

Patent

active

039584860

ABSTRACT:
This invention relates generally to electrically energizing visual representations of music by means of a portable attachment for the keyboard of pianos and organs; and it has particular application in providing a concept of music that is especially enjoyed by deaf persons, though by no means restricted in that sense.

REFERENCES:
patent: 667541 (1901-02-01), Loring
patent: 1750988 (1930-03-01), Bostelmann
patent: 2505608 (1950-04-01), Edwards
patent: 3395461 (1968-08-01), Krause
patent: 3460426 (1969-08-01), Jensen
patent: 3785237 (1974-01-01), Schutze

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