CPC Subgroup Additional Only
H04Q 2201/80 in specific systems
Full Title
Constructional details of selecting arrangements > in specific systems
4 direct subcodes
Child Classifications
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- H04Q 2201/802 in data transmission systems
- H04Q 2201/804 in optical transmission systems
- H04Q 2201/806 in PBX or KTS systems
- H04Q 2201/808 in wireless transmission systems