Transmitters for generating current signals for coupling to hidden or buried pipes, conduits, cables, or other conductors to generate magnetic fields for sensing; couplers for providing direct or inductive coupling of current signals to hidden or buried pipes, conduits, cables, or other conductors; sondes for generating dipole magnetic fields for sensing by utility locators; video inspection systems for inspecting hidden or buried pipes, conduits, or cavities; software for use with utility locators for receiving, storing, displaying, and/or transmitting data, images, video, or location or coordinate information; software for processing and storing data, images, or video provided from utility locators or video inspection systems
Electrical and Scientific Apparatus