查看完整版本: ITUR F.268-1

pps3000 2006-11-15 11:20

ITUR F.268-1

07-1970
Interconnection at audio frequencies of radio-relay systems for telephony
Note - Suppressed on 06/06/03 (RA-03)
页: [1]
查看完整版本: ITUR F.268-1