BUSY DIAL
Filed: May 2, 1986
TELEPHONES
Owned by: GTE Communication Systems Corporation
Serial Number: 73596513
LINE IN USE
Filed: May 2, 1986
TELEPHONES
Owned by: GTE Communication Systems Corporation
Serial Number: 73596516
Image Trademark
Filed: May 2, 1986
TELEPHONES
Owned by: GTE Communication Systems Corporation
Serial Number: 73596517
COIN NET
Filed: March 23, 1987
COMPUTER SOFTWARE PACKAGE FOR TELECOMMUNICATION SERVICES
Owned by: GTE Communication Systems Corporation
Serial Number: 73651123
COIN NET
Filed: March 18, 1988
COMPUTER PROGRAMS AND INSTRUCTION MANUALS SOLD THEREWITH IN THE FIELD OF TELECOMMUNICATIONS
Owned by: GTE Communication Systems Corporation
Serial Number: 73727828
GTD-5
Filed: July 11, 1988
TELECOMMUNICATIONS PRODUCTS, NAMELY, CENTRAL OFFICE SWITCHING APPARATUSES
Owned by: GTE Communication Systems Corporation
Serial Number: 73739146
PRIMUM
Filed: July 8, 1988
TELEPHONES
Owned by: GTE Communication Systems Corporation
Serial Number: 73739354
NOFLEX
Filed: July 12, 1996
apparatus for testing printed circuit boards
Owned by: GTE Communication Systems Corporation
Serial Number: 75130990
