4. Pipe joints or couplings
  5. Frangible element
  6. Score line or groove

Francis Xavier Kay

Inventor

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Breathing equipment

Surgery – Respiratory method or device – Means for preventing nasal inhalation
Patent

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Pipe joints

Pipe joints or couplings – Frangible element – Score line or groove
Patent

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Pressure gauge

Measuring and testing – Speed – velocity – or acceleration – With means for retaining reading
Patent

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Pressure regulator

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

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Valves

Valves and valve actuation – Balanced valves – Reciprocating
Reexamination Certificate

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Profile ID: LFUS-PAI-P-715415

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