FR828785A - Improvement in gas masks - Google Patents

Improvement in gas masks

Info

Publication number
FR828785A
FR828785A FR828785DA FR828785A FR 828785 A FR828785 A FR 828785A FR 828785D A FR828785D A FR 828785DA FR 828785 A FR828785 A FR 828785A
Authority
FR
France
Prior art keywords
improvement
gas masks
masks
gas
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
Bourcey Emile Frederic
Bourcey Rene Isidore
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 FR828785A publication Critical patent/FR828785A/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
    • A62B9/04—Couplings; Supporting frames

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR828785D 1937-02-01 1937-02-01 Improvement in gas masks Expired FR828785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR828785T 1937-02-01

Publications (1)

Publication Number Publication Date
FR828785A true FR828785A (en) 1938-05-30

Family

ID=9283892

Family Applications (1)

Application Number Title Priority Date Filing Date
FR828785D Expired FR828785A (en) 1937-02-01 1937-02-01 Improvement in gas masks

Country Status (1)

Country Link
FR (1) FR828785A (en)

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