Uncategorized
Inventor
Coded detecting systems
Means for testing inductors
Normally deenergized coded track circuit signaling systems
Polarized track circuit railway signaling apparatus
Railway traffic controlling apparatus
No associations
LandOfFree
Charles B. Shields does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Charles B. Shields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charles B. Shields will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-168829