CH225889A - Respiratory dust mask. - Google Patents

Respiratory dust mask.

Info

Publication number
CH225889A
CH225889A CH225889DA CH225889A CH 225889 A CH225889 A CH 225889A CH 225889D A CH225889D A CH 225889DA CH 225889 A CH225889 A CH 225889A
Authority
CH
Switzerland
Prior art keywords
dust mask
respiratory dust
respiratory
mask
dust
Prior art date
Application number
Other languages
French (fr)
Inventor
Pirelli Societa Italiana
Original Assignee
Pirelli
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 Pirelli filed Critical Pirelli
Publication of CH225889A publication Critical patent/CH225889A/en

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

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
CH225889D 1941-06-25 1942-03-31 Respiratory dust mask. CH225889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT250641X 1941-06-25

Publications (1)

Publication Number Publication Date
CH225889A true CH225889A (en) 1943-02-28

Family

ID=11215585

Family Applications (1)

Application Number Title Priority Date Filing Date
CH225889D CH225889A (en) 1941-06-25 1942-03-31 Respiratory dust mask.

Country Status (1)

Country Link
CH (1) CH225889A (en)

Similar Documents

Publication Publication Date Title
CH227440A (en) Forming arrangement.
CH257959A (en) Motocultor.
CH225889A (en) Respiratory dust mask.
FR916136A (en) Dust separator-collector
FR882233A (en) Dust mask
CH230478A (en) Kötzerspulmaschine.
FR858749A (en) Respiratory mask
DK62257C (en) Dust mask.
CH224806A (en) Telegram form.
CH224065A (en) Spirometer.
DK60419C (en) Ajlebeholder.
CH219678A (en) Inkware.
FR873733A (en) purifier
ES9230Y (en) Dust mask.
FR876424A (en) Inhaler
GR9608B (en) RESPIRATORY VALVE.
CH257248A (en) Pocket inhaler.
FR882678A (en) Spring improvements
FI20716A (en) Sät att framställa ett korrosionshämmande frysskyddsmedel
FR882384A (en) Breathing valve
FI20278A (en) Sät att framställa en lamellplatta jämte enligt sättet framställd lamellplatta
FI21069A (en) Anordning att inmonteras i kakelugnselstad
FI20918A (en) Sätt att ur tjäroljor framställa lättflyktiga kolväten
FI21130A (en) Sät att utvinna metaller ur metallhaltiga silikatslagger
ES6467Y (en) Elastic wire tape.