US PATENT SUBCLASS 116 / 149
.~ Sound modification

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


116 /   HD   SIGNALS AND INDICATORS

148  DF  BELLS {10}
149.~ Sound modification

DEFINITION

Classification: 116/149

(under subclass 148) Devices are used to raise, lower, muffle, or otherwise modify the sound of the bell.