4. Surgery
  5. Respiratory method or device
  6. Face mask covering a breathing passage

International Safety Instruments, Inc.

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Air tank filling system

Fluent material handling – with receiver or receiver coacting mea – Filling or refilling of dispensers – By operation of means causing or controlling dispensing
Patent

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Automatic reset for personal alert safety system

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Breathing apparatus and facepiece therefor

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

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Combination backframe and self contained breathing apparatus

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

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Demand valve for breathing apparatus

Fluid handling – Line condition change responsive valves – Pilot or servo controlled
Reexamination Certificate

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Profile ID: LFUS-PAI-P-439367

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