Acoustics
Sound-modifying means
Sound absorbing fence or screen
Inventor
active
No associations
LandOfFree
Harto Helpinen does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Harto Helpinen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Harto Helpinen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-434479