US PATENT SUBCLASS 379 / 175
.~.~ For underwater use (e.g., in diver's suit)

Current as of: June, 1999
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379 /   HD   TELEPHONIC COMMUNICATIONS

167  DF  PRIVATE (E.G., HOUSE OR INTERCOM) OR SINGLE LINE SYSTEM {6}
174  DF  .~ Including body or apparel supported terminal (e.g., headgear) {1}
175.~.~ For underwater use (e.g., in diver's suit)

DEFINITION

Classification: 379/175

For underwater use (e.g., in diver's suit):

(under subclass 174) Subject matter in which terminal is specifically adapted for operation by a submerged user.

SEE OR SEARCH CLASS

367, Communications, Electrical: Acoustic Wave Systems and Devices,

132, for an underwater speech communication system using acoustical waves in water as a portion of the transmission link.