4. Furnaces
  5. Spark arresters

Frank Bork

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Anti-pollution attachment to furnace

Furnaces – Spark arresters
Patent

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Children's stand up spinner ride

Amusement devices – Roundabout – Occupant propelled
Reexamination Certificate

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Knock-down grind rail for skateboards and rollerblades

Fences – Rail – Connection
Reexamination Certificate

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Knock-down quarter pipe for skateboarders, bikers and...

Bridges – Gangway – ramp – or dock leveler – Attached
Reexamination Certificate

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Launch ramp

Games – toys – and sports goods – Amusement – playground equipment or entertainment article not...
Design Patent

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Profile ID: LFUS-PAI-P-886590

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