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
Compositions that soften at predetermined temperatures and the m
Compositions that soften at predetermined temperatures and the m
Copolymers and non-porous, semi-permeable membrane thereof and i
Cutting board with funnel
Devices that change size/shape via osmotic pressure
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