BE649685A - - Google Patents

Info

Publication number
BE649685A
BE649685A BE649685DA BE649685A BE 649685 A BE649685 A BE 649685A BE 649685D A BE649685D A BE 649685DA BE 649685 A BE649685 A BE 649685A
Authority
BE
Belgium
Prior art keywords
chamber
tube
desc
valves
valve
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE649685A publication Critical patent/BE649685A/fr

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/10Valves

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
BE649685D BE649685A (enExample)

Publications (1)

Publication Number Publication Date
BE649685A true BE649685A (enExample)

Family

ID=205812

Family Applications (1)

Application Number Title Priority Date Filing Date
BE649685D BE649685A (enExample)

Country Status (1)

Country Link
BE (1) BE649685A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5411021A (en) * 1992-06-25 1995-05-02 Dragerwerk Ag Breathing mask with speaking device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5411021A (en) * 1992-06-25 1995-05-02 Dragerwerk Ag Breathing mask with speaking device

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