4. Surgery
  5. Respiratory method or device
  6. Means for supplying respiratory gas under positive pressure

Tony Christianson

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Diaphragm and exhaust valve for second stage regulator

Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent

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Dryest snorkel

Surgery – Respiratory method or device – Draw-type snorkel
Reexamination Certificate

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Elliptical purge valve for snorkels

Surgery – Respiratory method or device – Draw-type snorkel
Reexamination Certificate

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Expanding climbing aid

Supports – Brackets – Specially mounted or attached
Patent

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Flip top valve for dry snorkels

Surgery – Respiratory method or device – Draw-type snorkel
Reexamination Certificate

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Profile ID: LFUS-PAI-P-418279

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