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PCE
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DIFF Subgroup
H01P 3/127

with a circular, elliptic, or parabolic cross-section

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Waveguides; Transmission lines of the waveguide type > Hollow waveguides > with a circular, elliptic, or parabolic cross-section

CPC:

Waveguides; Transmission lines of the waveguide type > Hollow waveguides (H01P3/20 takes precedence) > with a circular, elliptic, or parabolic cross-section

No child classifications to compare. This is a leaf node in both IPC and CPC.