CPC Main Group
H04B 3/00 Line transmission systems (combined with near-field transmission systems H04B5/00)
5 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H04B 3/02 Details
- H04B 3/50 Systems for transmission between fixed stations via two-conductor transmission lines (H04B3/54 takes precedence)
- H04B 3/52 Systems for transmission between fixed stations via waveguides
- H04B 3/54 Systems for transmission via power distribution lines
- H04B 3/60 Systems for communication between relatively movable stations, e.g. for communication with lift (H04B3/54 takes precedence)