Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carbohydrate or derivative as a reactant
Inventor
active
Cured cellulose ester, method of curing same, and use thereof
Cured cellulose ester, method of curing same, and use thereof
Oxygen permeable hard contact lens
Tinted contact lens and method for preparation with dichlorotria
No associations
LandOfFree
Joseph W. Wittmann does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Joseph W. Wittmann, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Joseph W. Wittmann will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-250072