Telecommunications

Owner

SUMMA FOUR, INC.

—

Electrical and Scientific Apparatus

Owner

SUMMA FOUR, INC.

Jun 27, 1995

Electrical and Scientific Apparatus

Owner

SUMMA FOUR, INC.

—

Electrical and Scientific Apparatus

Owner

SUMMA FOUR, INC.

—

Electrical and Scientific Apparatus

Owner

SUMMA FOUR, INC.

—
CO-STAR

Electrical and Scientific Apparatus

Owner

SUMMA FOUR, INC.

Jun 9, 1987
SUMMA LINK

Electrical and Scientific Apparatus

Owner

SUMMA FOUR, INC.

Jan 20, 1987
PTSS

Electrical and Scientific Apparatus

Owner

SUMMA FOUR, INC.

Jan 14, 1986
PTMS

Electrical and Scientific Apparatus

Owner

SUMMA FOUR, INC.

Jan 14, 1986
PCX

Electrical and Scientific Apparatus

Owner

SUMMA FOUR, INC.

Oct 16, 1984
MCX

Electrical and Scientific Apparatus

Owner

SUMMA FOUR, INC.

Jun 11, 1985