Loudspeaker telephone

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

179100L, H04M 908

Patent

active

044939507

ABSTRACT:
A line powered loudspeaker telephone is provided with a lightweight headset and microphone as well as a loudspeaker and second microphone. A first switch is employed to go from the loudspeaker to the headphone and their respective microphones while a second switch is used as a listen-talk switch, preventing acoustical feedback.

REFERENCES:
patent: 3772472 (1973-11-01), Blomberg
patent: 4115659 (1978-09-01), Spanel et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Loudspeaker telephone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Loudspeaker telephone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Loudspeaker telephone will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1481808

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.