Mark Identification

2DI

Serial Number

73722813

Filing Date

Apr 18, 1988

Trademark by

SIERRA GEOPHYSICS INC.

Classification Information

PRERECORDED COMPUTER PROGRAMS FOR USE IN PHYSICS, MATHEMATICAL ANALYSIS, GEOPHYSICS, GEOLOGY, PETROLEUM ENGINEERING, RESERVOIR ENGINEERING, MINERALS EXPLORATION, CARTOGRAPHY, INTERACTIVE GRAPHICS APPLICATIONS, AND GEOTECHNICAL ANALYSIS

Electrical and Scientific Apparatus

COMPUTER PROGRAM USER MANUALS

Paper Goods and Printed Matter