US PATENT SUBCLASS 84 / 44
.~.~.~.~.~.~ Two cooperating pneumatics to each note
Current as of:
June, 1999
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84 /
HD
MUSIC
1
DF
INSTRUMENTS
{9}
*
DD
.~ Automatic {13}
7
DF
.~.~ Stringed {4}
13
DF
.~.~.~ Pianos {5}
24
DF
.~.~.~.~ Pneumatic type {10}
33
DF
.~.~.~.~.~ Expression mechanism {8}
44
.~.~.~.~.~.~ Two cooperating pneumatics to each note
DEFINITION
Classification: 84/44
There are two striker-pneumatics for each note, one or both of which may be used.