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PCE
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DIFF Subgroup
G01S 13/91

for traffic control (G01S13/93 takes precedence)

Introduced: January 1980

Title

Titles differ between systems:

IPC: for traffic control

CPC: for traffic control (G01S13/93 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified > Radar or analogous systems, specially adapted for specific applications > for traffic control

CPC:

Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified > Radar or analogous systems specially adapted for specific applications (electromagnetic prospecting or detecting of objects, e.g. near-field detection, G01V3/00) > for traffic control (G01S13/93 takes precedence)

CPC subdivides this area 4x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

IPC defines codes here since 1980.

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