(under subclass 61) Subject matter wherein a picture signal generator is enclosed in or provided with structure to permit its use in environments of extreme heat or radiation or where access is not possible by humans or an ordinary television system.
SEE OR SEARCH THIS CLASS, SUBCLASS:
65+, for picture signal generators employed in endoscopes.
81, for picture signal generators used in underwater environments.
SEE OR SEARCH CLASS
138, Pipes and Tubular Conduits,
97, for apparatus to locate and repair cracks in pipes that may utilize television.
356, Optics: Measuring and Testing, 241.1+, for bore inspection utilizing optical elements.
