ALDS, Assistive Listening Device Systems Inc. Trademarks
MAGNATEL
Filed: August 3, 1992
apparatus which measures the magnetic output of the telephone receiver or magnetic loop system for hearing aid users
Owned by: ALDS, Assistive Listening Device Systems Inc.
Serial Number: 74300448
ALDS
Filed: August 3, 1992
products used by deaf or hearing impaired persons to facilitate easier and higher quality communications; namely, apparatus…
Owned by: ALDS, Assistive Listening Device Systems Inc.
Serial Number: 74300449
PORTA-IR
Filed: August 3, 1992
portable infrared transmitter for the hard of hearing
Owned by: ALDS, Assistive Listening Device Systems Inc.
Serial Number: 74300450
