Railway switches and signals
Switches
Chairs and plates
Inventor
active
Anchoring devices for rail fastening clips
Fastening rail in railway slide chair assembly
Railway baseplate assembly
Suspended rail fastening assembly
No associations
LandOfFree
John Phillip Porrill does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with John Phillip Porrill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and John Phillip Porrill will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-2315438