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

Akihiko Koba

Inventor

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Flush valve device of flush toilet

Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Reexamination Certificate

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Magnetic fluid seal apparatus

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent

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Profile ID: LFUS-PAI-P-1099313

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