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...

James Kerstein

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Engineered railroad ties

Railways: surface track – Ties – Forms
Reexamination Certificate

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Use of recycled plastics for preparing high performance...

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

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Use of recycled plastics for structural building forms

Bridges – Bridge construction method
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2152993

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