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 China 'GB/T 3971.3-1983 ' standard english version:

　

NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

GB/T 3971.3-1983

The test methods for the technical specifications of multi-frequency register signalling for telephone auto-matic switching network
电话自动交换网多频记发器信号技术指标测试方法
Issued Date:1983-12-15 　 Implemented Date:1984-10-01
Issued by: 　 The Standardization Administration of the People's Republic of China
　

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GB Standard Code GB/T 3971.3-1983
Standard Category China National Standards
GB Standard English Title The test methods for the technical specifications of multi-frequency register signalling for telephone auto-matic switching network
GB Standard Chinese Title 电话自动交换网多频记发器信号技术指标测试方法
Chinese Version Price $5.00  per  page
English Translation Fee $15.00~$30.00   per  page
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