Optics: measuring and testing
Crystal or gem examination
Inventor
active
Distinguishing natural from synthetic diamond
Distinguishing natural from synthetic diamonds
Examining a diamond
No associations
LandOfFree
Paul Martyn Spear does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Paul Martyn Spear, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Paul Martyn Spear will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-474009