MIL-C-6720 Complete Document History
Clock, Aircraft, Elapsed Time, Civil Date, 24-Hour, 2-3/4 Inch Dial (No Superseding Document)


Obsolete Revision Information:
   CAN NOT 1 - CLOCK, AIRCRAFT, ELAPSED TIME, - Dec. 17, 1990
   REVISION C - CLOCK, AIRCRAFT, ELAPSED TIME, - June 11, 1980