12 U. S.

search to develop and test suitable lubricants; when to lubricate motor; on car of harmful conditions (in animation) how to remove old lubricant spe-; cial lubricants for hypoid gears. minutes, silent) Auxiliaries U.S. Department of the Navy, 1944. Operations involved in starting steam turbine-driven pumps, placing oil cooler in operation, and securing a centrifugal pump