4. Fluid reaction surfaces (i.e., impellers)
  5. Specific working member mount
  6. Distally supported on radial arm

Ling-Zhong Zeng

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Fan blade

Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Distally supported on radial arm
Reexamination Certificate

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Fan blade

Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Distally supported on radial arm
Reexamination Certificate

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Fan blade

Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Distally supported on radial arm
Reexamination Certificate

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Shroud for a fan assembly

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Design Patent

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