DIRECTIONAL CASTING

Marine depth finders; sonar fish detection indicators in the form of floats; sonar fish finders; sonar transducers; fish detectors; sonar transmitters, sonar receivers, visual display instrumentation and sonar control instrumentation; computer and mobile device programs and applications for use in underwater imaging, navigation, and the detection of fish, namely, computer programs for sonar signal processing, for image processing, for graphical user interfaces, for video display networking, for GPS processing, and for operation of a marine sonar system