4. Synthetic resins or natural rubbers -- part of the class 520 ser
  5. Synthetic resins
  6. Mixing of two or more solid polymers; mixing of solid...

William Robb Roy Park

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Household plastic film in roll form and embodying a curled leadi

Special receptacle or package – For roll or reel – Wrapped – boxed – or secured through roll core
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Method of making hydrophobic copolymers hydrophilic

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
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