US PATENT SUBCLASS 367 / 910
PORTABLE SONAR DEVICES

Current as of: June, 1999
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367 /   HD   COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES

910PORTABLE SONAR DEVICES

DEFINITION

Classification: 367/910

PORTABLE SONAR DEVICES:

Acoustic wave echo systems or distance and direction finding systems which are made to be carried and operated by one person.