FR809486A - Pre-filter for devices protecting against aggressive products - Google Patents

Pre-filter for devices protecting against aggressive products

Info

Publication number
FR809486A
FR809486A FR809486DA FR809486A FR 809486 A FR809486 A FR 809486A FR 809486D A FR809486D A FR 809486DA FR 809486 A FR809486 A FR 809486A
Authority
FR
France
Prior art keywords
filter
protecting against
against aggressive
aggressive products
devices protecting
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
Armand Poelman
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 FR809486A publication Critical patent/FR809486A/en
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)
FR809486D 1935-11-27 1935-11-27 Pre-filter for devices protecting against aggressive products Expired FR809486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR809486T 1935-11-27

Publications (1)

Publication Number Publication Date
FR809486A true FR809486A (en) 1937-03-03

Family

ID=9253560

Family Applications (1)

Application Number Title Priority Date Filing Date
FR809486D Expired FR809486A (en) 1935-11-27 1935-11-27 Pre-filter for devices protecting against aggressive products

Country Status (1)

Country Link
FR (1) FR809486A (en)

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