Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
Inventor
active
No associations
LandOfFree
Yeong R. Chang does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Yeong R. Chang, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Yeong R. Chang will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-1627670