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PCE
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DIFF Subgroup
H01P 5/184

Full Title

Coupling devices of the waveguide type > Coupling devices having more than two ports (H01P5/04 takes precedence) > Conjugate devices, i.e. devices having at least one port decoupled from one other port > consisting of two coupled guides, e.g. directional couplers

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.