Membership
Tour
Register
Log in
Robert D. Mattingly
Follow
Person
Silver Spring, MD, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Underwater sound transmitting system
Patent number
4,975,890
Issue date
Dec 4, 1990
The United States of America as represented by the Secretary of the Navy
Sylvan Wolf
H04 - ELECTRIC COMMUNICATION TECHNIQUE