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United States Department of Transportation United States Department of Transportation

Order 3900.18 - Reporting High Level Tones on Communications Circuits (Cancelled)

Document Information

Type
Order
Number
3900.18
Title
Reporting High Level Tones on Communications Circuits
Date issued
1973-05-01
Date cancelled
1986-12-01
Cancellation notes
SW N 1300.9
Office of Primary Responsibility
ASW-461
Access restriction
Public
Content

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