Electrical and Scientific Apparatus

Owner

GEOSONICS, INC.

Mar 23, 1993

Computer and Scientific

Owner

GEOSONICS, INC.

Apr 4, 1989

Electrical and Scientific Apparatus

Owner

GEOSONICS, INC.

Mar 7, 1989

Computer and Scientific

Owner

GEOSONICS INC.

May 31, 1977