4. Surgery
  5. Means for introducing or removing material from body for...
  6. Treating material introduced into or removed from body...

Raymond P. Feith

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Bi-directional valve and method of using same

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent

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Breathing mask and regulator for aircraft

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

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Cutting tool

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Design Patent

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Cutting tool

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Design Patent

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Cutting tool for flexible conduit

Cutlery – Pipe and rod cutters
Reexamination Certificate

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Profile ID: LFUS-PAI-P-573954

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