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Protective helmet with integral air supply

Apparel – Head coverings – With forced air circulator
Reexamination Certificate

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Protective helmet with selectively covered aperture

Apparel – Head coverings – With forced air circulator
Reexamination Certificate

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Rigid helmet having air blowing system

Apparel – Head coverings – With forced air circulator
Patent

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Safety helmet having a ventilation assembly

Apparel – Head coverings – With forced air circulator
Reexamination Certificate

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Safety helmet with an air duct

Apparel – Head coverings – With forced air circulator
Reexamination Certificate

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Self-contained air conditioning unit for persons

Apparel – Head coverings – With forced air circulator
Patent

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Solar powered head cooling device

Apparel – Head coverings – With forced air circulator
Patent

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Solar powered headwear fan

Apparel – Head coverings – With forced air circulator
Patent

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Surgical protective head gear assembly including high volume...

Apparel – Head coverings – With forced air circulator
Reexamination Certificate

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Ventilated hardhat

Apparel – Head coverings – With forced air circulator
Patent

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