PERFORMANCE CRITICAL DATA WHEREVER YOU NEED IT

Computer and Scientific

Owner

PROPTESTER, INC.

—
QUAD

Computer and Scientific

Owner

PROPTESTER, INC.

Feb 20, 2007
PROPTESTER

Computer and Scientific

Owner

PROPTESTER, INC.

Jan 31, 2006
PROPTESTER INC.

Computer and Scientific

Owner

PROPTESTER, INC.

Feb 7, 2006
QUALIFYING FLUID & PROPPANT PERFORMANCE

Computer and Scientific

Owner

PROPTESTER, INC.

Mar 4, 2008
PS-50

Computer and Scientific

Owner

PROPTESTER, INC.

Jun 10, 2008