RINGMAX
Filed: May 14, 1991
device to vary the volume, frequency and/or tone pulse of the audible ringing signal of a telephone
Owned by: BELLMAN & SYMFON EUROPE AB
Serial Number: 74166626
Image Trademark
Filed: April 14, 1994
telephone ringers; acoustical and optical alerting system comprising transmitters and receivers; audio transmitters, audio…
Owned by: BELLMAN & SYMFON EUROPE AB
Serial Number: 74512498
RESPONSE
Filed: June 9, 1994
hearing aids
Owned by: BELLMAN & SYMFON EUROPE AB
Serial Number: 74535316
BELLMAN & SYMFON
Filed: August 16, 2001
Acoustical and optical alerting systems namely, notification systems for hearing impaired persons, persons in difficult…
Owned by: BELLMAN & SYMFON EUROPE AB
Serial Number: 76300881
BELLMAN
Filed: August 16, 2001
ELECTRIC DOOR RINGERS; ACOUSTICAL AND OPTICAL ALERTING SYSTEMS, namely, NON-TELECOMMUNICATIONS-RELATED NOTIFICATIONS SYSTEMS…
Owned by: BELLMAN & SYMFON EUROPE AB
Serial Number: 76301629
