Mark Identification

DIGICOURSE

Serial Number

74364020

Filing Date

Mar 3, 1993

Registration Date

Dec 21, 1993

Trademark by

ION GEOPHYSICAL CORPORATION

Active Trademark

Classification Information

electronic survey and position detection systems and components therefor; namely, compasses, underwater sonic transducers, computer program software, and radio communication equipment; namely, receivers and transmitters

Electrical and Scientific Apparatus