Uncategorized
Inventor
Country: United Kingdom
Means of compensating the expansion or contraction of wires,...
Train signal
Means of compensating the expansion or contraction of wires,...
Railway signal
Train signal
LandOfFree
Walter Harrison Biddle does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Walter Harrison Biddle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Walter Harrison Biddle will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-224080