G - Physics – 09 – B
Patent
G - Physics
09
B
35/30
G09B 15/00 (2006.01)
Patent
CA 1053899
"POCKET-SIZE MUSICAL CHORD STUDY AID" ABSTRACT A self-contained unit similar to a conventional pocket calculator provides indications of the make-up of musical chord triads for use as a self-study aid.
274899
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