US PATENT SUBCLASS 73 / 651
.~.~ Vibratable reed

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

570  DF  VIBRATION {10}
649  DF  .~ Sensing apparatus {5}
651.~.~ Vibratable reed

DEFINITION

Classification: 73/651

Vibratable reed:

(under subclass 649) Subject matter including one or more vibratable reeds as the sensing elements.

SEE OR SEARCH CLASS

84, Music,

454, for reeds used in tuning musical instruments.

324, Electricity: Measuring and Testing,

76.49, for a tuned mechanical resonator (e.g., reed piezocrystal).