FR721699A - Improvements to breathing apparatus - Google Patents

Improvements to breathing apparatus

Info

Publication number
FR721699A
FR721699A FR721699DA FR721699A FR 721699 A FR721699 A FR 721699A FR 721699D A FR721699D A FR 721699DA FR 721699 A FR721699 A FR 721699A
Authority
FR
France
Prior art keywords
breathing apparatus
breathing
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
Maurice Fernez
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 FR721699A publication Critical patent/FR721699A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR721699D 1930-11-19 1930-11-19 Improvements to breathing apparatus Expired FR721699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR721699T 1930-11-19

Publications (1)

Publication Number Publication Date
FR721699A true FR721699A (en) 1932-03-07

Family

ID=9098411

Family Applications (1)

Application Number Title Priority Date Filing Date
FR721699D Expired FR721699A (en) 1930-11-19 1930-11-19 Improvements to breathing apparatus

Country Status (1)

Country Link
FR (1) FR721699A (en)

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