4. Seal for a joint or juncture
  5. Seal between relatively movable parts
  6. Relatively rotatable radially extending sealing face member

Jaromir Friedrich

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Downstream plug

Pipes and tubular conduits – With closures and plugs – Inflation stem type
Patent

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Engine shutdown valve

Valves and valve actuation – Pivoted valves – Gate
Patent

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Method and apparatus for roasting coffee

Foods and beverages: apparatus – Subjecting food to an enclosed modified atmosphere – Automatic control or time means
Reexamination Certificate

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Pipeline plug

Pipes and tubular conduits – With closures and plugs – Inflation stem type
Patent

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Pipeline plug

Pipes and tubular conduits – With closures and plugs – Inflation stem type
Patent

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