MIL-I-11900 › Complete Document History
Interphone Control C-980( )/U and C-981( )/U


Obsolete Revision Information:
   NOT - INTERPHONE CONTROL C-980# #/U - Sept. 17, 1973
   REVISION A - INTERPHONE CONTROL C-980# #/U - March 31, 1967
   AMENDMENT 3 - INTERPHONE CONTROL C-980# #/U - Jan. 1, 1960