4. Communications: electrical
  5. Condition responsive indicating system
  6. With particular coupling link

Carl Toft

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Emergency worker and fireman's dual emergency warning system

Communications: electrical – Condition responsive indicating system – With particular coupling link
Patent

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Logical display for a breathing apparatus mask

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

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Profile ID: LFUS-PAI-P-1810468

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