Fire escape, ladder, or scaffold
Traversing, track-mounted
With vertically spaced second track
Inventor
active
No associations
LandOfFree
Douglas Whan does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Douglas Whan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Douglas Whan will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-1172035