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Class Information
Number: 367/761
Name: Communications, electrical: acoustic wave systems and devices >
Description:










Sub-classes under this class:

Class Number Class Name Patents
367/1 Sonar counter-measures 129
367/117 Plural transmitters to receiver or transmitter to plural receivers 108
367/118 Distance or direction finding 213
367/12 Beam stabilization or compensation 58
367/13 Testing, monitoring, or calibrating 335
367/131 Underwater system 301
367/135 Receiver circuitry 272
367/137 Transmitter systems 164
367/14 Seismic prospecting 130
367/140 Signal transducers 341
367/191 Miscellaneous 103
367/197 Selective (e.g., remote control) 103
367/2 Transponders 78
367/7 Acoustic image conversion 219
367/81 Wellbore telemetering 137
367/86 Borehole testing 93
367/87 Echo systems 234
367/900 Sonar time varied gain control systems 60
367/901 Noise or unwanted signal reduction in nonseismic receiving system 210
367/902 Speed of sound compensation 92
367/903 Transmit-receive circuitry 80
367/904 Doppler compensation systems 55
367/905 Side lobe reduction or shading 84
367/906 Airborne shock-wave detection 86
367/907 Coordinate determination 99
367/908 Material level detection, e.g., liquid level 213
367/909 Collision avoidance 165
367/910 Portable sonar devices 104
367/911 Particular well-logging apparatus 141


Patents under this class:

Patent Number Title Of Patent Date Issued











 
 
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