Railway switches and signals
Block-signal systems
Automatic
Inventor
active
Alternating current immunized relay and method of immunizing a r
Apparatus and method for measuring insulated track joint resista
Automatic counting system for passages
Broken rail and/or broken rail joint bar detection
Combination frequency loop coupling for railway track signalling
No associations
LandOfFree
Klaus H. Frielinghaus does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Klaus H. Frielinghaus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Klaus H. Frielinghaus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-174486