US PATENT SUBCLASS 73 / 586
.~.~ Reverberation

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

570  DF  VIBRATION {10}
584  DF  .~ By mechanical waves {13}
586.~.~ Reverberation

DEFINITION

Classification: 73/586

Reverberation:

(under subclass 584) Subject matter wherein sonic characteristics of the sonic waves in an enclosed room or space are determined.

(1) Note. Included herein are means for producing a sonic wave in a room and measuring the sonic decay characteristics of the room.

SEE OR SEARCH THIS CLASS, SUBCLASS:

571, for special test chambers.