Uncategorized
Inventor
Apparatus for raising sunken vessels
Burr hole plug designs
Catheter insertion device with retractable needle
Circuit breakers
Combination safety needle assembly and medical apparatus
Apparatus for raising sunken vessels
Door
Medical device with safety flexible needle
Protractor square
Safety shield for rotary drilling rigs
LandOfFree
John Barker 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 Barker, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and John Barker will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-134936