PERSONAL PA
Filed: March 31, 1986
RADIO FREQUENCY FM TRANSMITTER AND PORTABLE FM RECEIVER AND AMPLIFIER WITH AUDIO OUTPUT
Owned by: WILLIAMS SOUND CORP.
Serial Number: 73590800
POCKETALKER
Filed: March 31, 1986
PORTABLE AUDIO FREQUENCY AMPLIFIER WITH MICROPHONE INPUT
Owned by: WILLIAMS SOUND CORP.
Serial Number: 73590801
WILLIAMS SOUND
Filed: April 14, 1986
RADIO FREQUENCY TRANSMITTERS AND RECEIVERS, PORTABLE AUDIO FREQUENCY AMPLIFIERS
Owned by: WILLIAMS SOUND CORP.
Serial Number: 73593103
TELELINK
Filed: December 12, 1988
TELEPHONE AMPLIFIER COUPLER FOR CONNECTING A HEARING AID TO A TELEPHONE
Owned by: WILLIAMS SOUND CORP.
Serial Number: 73768644
TELEMAX
Filed: December 23, 1997
battery-powered hearing accessories for the hard of hearing; adapters for portable and cellular phones for use with hearing…
Owned by: WILLIAMS SOUND CORP.
Serial Number: 75410301
WHISPER
Wireless transmitters and receivers for use with hearing assistance devices
Owned by: WILLIAMS SOUND CORP.
Serial Number: 77092235
