FR811168A - Perfectionnements aux masques - Google Patents

Perfectionnements aux masques

Info

Publication number: FR811168A
Authority: FR; France
Prior art keywords: refinements; mask; mask refinements
Prior art date: 1935-12-28
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

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.)

1935-12-28

Filing date

1935-12-28

Publication date

1937-04-08

1935-12-28 Application filed by MICHEL ET MARCHAL filed Critical MICHEL ET MARCHAL

1937-04-08 Application granted granted Critical

1937-04-08 Publication of FR811168A publication Critical patent/FR811168A/fr

Status Expired legal-status Critical Current

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 Perfectionnements aux masques Expired FR811168A (fr)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=9259494

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR811168D Expired FR811168A (fr)	1935-12-28	1935-12-28	Perfectionnements aux masques

Country Status (1)

Country	Link
FR (1)	FR811168A (fr)

1935
- 1935-12-28 FR FR811168D patent/FR811168A/fr not_active Expired

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