Show used in search for oil airborne magneto magnetometers meters used during world war II 11 to lo 10 cat cate submerged enemy sulM nar linca ines have become so important in the ihunt tor for hidden dc posit s at of minerals to supply american nods that over a namoa square miles of territory ha have been bem surveyed by such kwam menta ments the uie magnetometers magneto meters are trailed itra fled behind and bellow airplanes that fly br at low altitudes wn m para parallel illel paths raft over the surveyed wea am they ney detect tic and signal roford ing instrument instruments in the plane the use of such ouch equipment la is a great griest aid to fill ell of IB it en ailles ou comp wlee to find oil ou with inexpensive effective methods and d pasa pan the savings on to filhe public |