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FR811168A - Mask refinements - Google Patents

Mask refinements

Info

Publication number
FR811168A
FR811168A FR811168DA FR811168A FR 811168 A FR811168 A FR 811168A FR 811168D A FR811168D A FR 811168DA FR 811168 A FR811168 A FR 811168A
Authority
FR
France
Prior art keywords
refinements
mask
mask refinements
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MICHEL ET MARCHAL
Original Assignee
MICHEL ET MARCHAL
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 by MICHEL ET MARCHAL filed Critical MICHEL ET MARCHAL
Application granted granted Critical
Publication of FR811168A publication Critical patent/FR811168A/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
    • A62B18/02—Masks

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR811168D 1935-12-28 1935-12-28 Mask refinements Expired FR811168A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR811168T 1935-12-28

Publications (1)

Publication Number Publication Date
FR811168A true FR811168A (en) 1937-04-08

Family

ID=9259494

Family Applications (1)

Application Number Title Priority Date Filing Date
FR811168D Expired FR811168A (en) 1935-12-28 1935-12-28 Mask refinements

Country Status (1)

Country Link
FR (1) FR811168A (en)

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