MIL-R-28568 › Complete Document History
Rig, Drill, Rotary and Top Head Type, Mud Circulation (No Superseding Document)


Obsolete Revision Information:
   CAN NOT 1 - RIG, DRILL, ROTARY AND TOP HEA - Dec. 16, 1991
   AMENDMENT 1 - RIG, DRILL, ROTARY AND TOP HEA - March 29, 1985
   REVISION B - RIG, DRILL, ROTARY AND TOP HEA - Oct. 16, 1984