9 Molded Plastic Parts for Electrical and Electronic Apparatus, With or Without Embedded Metal Parts-Namely, Bus Supports, Bases for Terminal Blocks, and Arc Chutes: Structural Parts for Circuit Breakers, Contractors Switches, Fuse Holders, and Transformers: Enclosures and Conduit Hubs for Housing Electrical and Electronic Apparatus: and Parts and Enclosures for Computer Based Machines and Peripheral Computer Apparatus to Be Used in Conjunction with the Computer Based Machines-Namely, Frames, Disc Drives, Cassette Tape Holders, and Consoles