4. Heat exchange
  5. Regenerator
  6. Checker brick structure

Paul R. Crawford

Inventor

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Folding kayak

Ships – Boats – boat component – or attachment – Canoe or kayak
Reexamination Certificate

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Golf practice apparatus

Games using tangible projectile – Golf – Practice projectile addressing surface
Patent

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System and process for storing energy

Heat exchange – Regenerator – Checker brick structure
Patent

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Profile ID: LFUS-PAI-P-776342

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