4. Education and demonstration
  5. Physical education
  6. Swimming

David Pendergast

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Process for enhancing material properties and materials so...

Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Reexamination Certificate

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System and method for training a swimmer

Education and demonstration – Physical education – Swimming
Patent

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Profile ID: LFUS-PAI-P-765994

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