Communications: directive radio wave systems and devices (e.g. – Transmission through media other than air or free space
Patent
1973-07-09
1991-05-28
Issing, Gregory C.
Communications: directive radio wave systems and devices (e.g.,
Transmission through media other than air or free space
342 27, 340850, 324326, G01S 1300, H04B 1302, G01V 308
Patent
active
050198220
ABSTRACT:
A system is disclosed for detecting and locating the occurrence of anomal to radio frequency electromagnetic transmission in conductive liquids. Applications are described for use in swimmer detection and for process monitoring.
REFERENCES:
patent: 3214728 (1965-10-01), Higgins
patent: 3329929 (1967-07-01), Burnett
patent: 3412371 (1968-11-01), Shostak
patent: 3719947 (1973-03-01), Gutton et al.
Issing Gregory C.
Sheinbein Sol
The United States of America as represented by the Secretary of
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