SB-86

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References

  • TM 11-2134 Manual Telephone Switchboard SB-86/P Installation and Operation, Depts. of the Army and Air Force, Sept.1, 1955
  • TM 11-4134 Manual Telephone Switchboard SB-86/P Field Maintenance Dept. of the Army and Air Force. Sept. 1955
  • TM 11-5805-304 Series