FR891453A - Retirement warning device for oxygen or compressed air breathing apparatus - Google Patents

Retirement warning device for oxygen or compressed air breathing apparatus

Info

Publication number
FR891453A
FR891453A FR891453DA FR891453A FR 891453 A FR891453 A FR 891453A FR 891453D A FR891453D A FR 891453DA FR 891453 A FR891453 A FR 891453A
Authority
FR
France
Prior art keywords
retirement
oxygen
compressed air
warning device
breathing apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Otto Heinrich Drager
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR891453A publication Critical patent/FR891453A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/006—Indicators or warning devices, e.g. of low pressure, contamination

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR891453D 1941-09-03 1943-02-23 Retirement warning device for oxygen or compressed air breathing apparatus Expired FR891453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE891453X 1941-09-03

Publications (1)

Publication Number Publication Date
FR891453A true FR891453A (en) 1944-03-08

Family

ID=6845333

Family Applications (1)

Application Number Title Priority Date Filing Date
FR891453D Expired FR891453A (en) 1941-09-03 1943-02-23 Retirement warning device for oxygen or compressed air breathing apparatus

Country Status (1)

Country Link
FR (1) FR891453A (en)

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