Mark Identification

THE HALLIBURTON LIBRARY

Serial Number

74175166

Filing Date

Jun 11, 1991

Registration Date

Dec 1, 1992

Trademark by

SIERRA GEOPHYSICS INC.

Classification Information

computer programs for use in geophysical and geological exploration and data analysis and drilling and pumping of oil, and oil field surveying and exploration

Electrical and Scientific Apparatus

user manuals for use in geophysical and geological exploration and data analysis and drilling and pumping of oil, and oil field surveying and exploration

Paper Goods and Printed Matter