74066148
Jun 6, 1990
Mar 2, 1993
data recorders and reproducers, data transmitters, broadcasters and exchangers, magnetic data carriers, and computer programs for processing and analyzing geophysical data for geophysical exploration to locate and identify the structure of earth as to minerals, hydrocarbons and other subsurface deposits
Electrical and Scientific Apparatusbooks, magazines and brochures featuring geophysical exploration techniques and equipment
Paper Goods and Printed Mattercomputer programming services and interpretation of scientific data in the field of geophysical exploration
Computer and Scientific