4. Road structure, process, or apparatus
  5. Apparatus
  6. Rotating drum, roller or tire

David W. Gerber

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Coal spreader with swirl vanes

Furnaces – Fuel feeders – Blower
Patent

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Labyrinth articulation joint for regenerative air heater seal fr

Heat exchange – Regenerator
Patent

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Method for making an improved main shaft for a coal...

Metal working – Method of mechanical manufacture – Combined manufacture including applying or shaping of fluent...
Reexamination Certificate

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Rotating pipe joint having a floating seal

Pipe joints or couplings – Liquid seal – With relative motion
Patent

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Strain relief main shaft assembly

Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Reexamination Certificate

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Profile ID: LFUS-PAI-P-690016

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