Uncategorized
Inventor
Bonnetless stock valve
Fabricated bonnet valve and method of making the same
Gate valve with back pressure means
Self-adjusting wedge gate valve
Stock valve
No associations
LandOfFree
L. Williams John does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with L. Williams John, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and L. Williams John will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-797856