4. Apparel
  5. Guard or protector
  6. For wearer's head

Dennis Hart

Inventor

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Air system for scuba diving

Surgery – Respiratory method or device – Combined with or convertible to a nonrespiratory device – or...
Patent

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Anti-rotation pipe locator and holder

Pipe joints or couplings – Pipe to discreet nipple or sleeve to plate – Expandable detent engages plate to hold nipple
Reexamination Certificate

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Dive mask

Apparel – Guard or protector – For wearer's head
Patent

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Mining machine with adjustable jib

Mining or in situ disintegration of hard material – Hard material disintegrating machines
Patent

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Twist-lock base for pipe holders

Supports – Pipe or cable – Brackets
Reexamination Certificate

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Profile ID: LFUS-PAI-P-234964

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