US PATENT SUBCLASS 181 / 128
.~ Ear and mouth

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

Internet Version by PATENTEC © 1999      Terms of Use


181 /   HD   ACOUSTICS

126  DF  ANATOMIC OR PROSTHETIC RELATION {2}
128.~ Ear and mouth {4}
129  DF  .~.~> Ear
130  DF  .~.~> Auditory canal insert {5}
136  DF  .~.~> Deflector type
137  DF  .~.~> Receiver

DEFINITION

Classification: 181/128

(under subclass 126) Subject matter having an earpiece and mouthpiece operatively connected together.