Owner: PRENTICE-HALL PROFESSIONAL SOFTWARE INC.

Electrical and Scientific Apparatus and 2 other

Owner

PRENTICE-HALL PROFESSIONAL SOFTWARE, INC.

May 14, 1985

Electrical and Scientific Apparatus

Owner

PRENTICE-HALL PROFESSIONAL SOFTWARE, INC.

Jan 8, 1985

Electrical and Scientific Apparatus and 2 other

Owner

PRENTICE-HALL PROFESSIONAL SOFTWARE, INC.

Nov 13, 1984

Electrical and Scientific Apparatus

Owner

PRENTICE-HALL PROFESSIONAL SOFTWARE, INC.

Dec 9, 1980