R-Columbia Products Co., Inc. Trademarks
EXPAND-A-COM
Filed: July 11, 1995
electrical intracommunication systems, namely, intercoms, consisting of a main stations, consoles, power supplies, slave…
Owned by: R-Columbia Products Co., Inc.
Serial Number: 74699937
PALMTALKER
Filed: November 6, 1996
wireless headset transmitter activators for use with wireless intercom headphones
Owned by: R-Columbia Products Co., Inc.
Serial Number: 75193941
