E - Fixed Constructions – 21 – B
Inventor
E - Fixed Constructions
21
B
Inventor
Country: United States Of America
Annulus pressure controlled reversing valve
Dual ball valve sampler safety valve
Full bore sampler valve apparatus
Inflatable packer drill stem testing system
Pressure activated well perforating technique
No associations
LandOfFree
James M. Upchurch does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with James M. Upchurch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and James M. Upchurch will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-422793