FR831220A - Filtre à air - Google Patents

Filtre à air

Info

Publication number
FR831220A
FR831220A FR831220DA FR831220A FR 831220 A FR831220 A FR 831220A FR 831220D A FR831220D A FR 831220DA FR 831220 A FR831220 A FR 831220A
Authority
FR
France
Prior art keywords
air filter
filter
air
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
English (en)
Inventor
Ricateau Andre Rene Jean
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 FR831220A publication Critical patent/FR831220A/fr
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR831220D 1937-11-29 1937-11-29 Filtre à air Expired FR831220A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR831220T 1937-11-29

Publications (1)

Publication Number Publication Date
FR831220A true FR831220A (fr) 1938-08-26

Family

ID=9291056

Family Applications (1)

Application Number Title Priority Date Filing Date
FR831220D Expired FR831220A (fr) 1937-11-29 1937-11-29 Filtre à air

Country Status (1)

Country Link
FR (1) FR831220A (fr)

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