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Active standard | Published: 15/12/1983
GB/T 3971.3-1983
The test methods for the technical specifications of multi-frequency register signalling for telephone auto-matic switching network
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 382.80 USD
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Detail information
Designation: GB/T 3971.3-1983
Publication date: 15/12/1983
Pages: 0
Country: Chinese technical standard
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