NZ217522A - Dust mask with combined inhalation and exhalation valves - Google Patents

Dust mask with combined inhalation and exhalation valves

Info

Publication number
NZ217522A
NZ217522A NZ21752286A NZ21752286A NZ217522A NZ 217522 A NZ217522 A NZ 217522A NZ 21752286 A NZ21752286 A NZ 21752286A NZ 21752286 A NZ21752286 A NZ 21752286A NZ 217522 A NZ217522 A NZ 217522A
Authority
NZ
New Zealand
Prior art keywords
dust mask
exhalation valves
combined inhalation
inhalation
combined
Prior art date
Application number
NZ21752286A
Inventor
E N Montesi
Original Assignee
Siebe North Inc
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 Siebe North Inc filed Critical Siebe North Inc
Priority to NZ21752286A priority Critical patent/NZ217522A/en
Publication of NZ217522A publication Critical patent/NZ217522A/en

Links

NZ21752286A 1986-09-10 1986-09-10 Dust mask with combined inhalation and exhalation valves NZ217522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NZ21752286A NZ217522A (en) 1986-09-10 1986-09-10 Dust mask with combined inhalation and exhalation valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ21752286A NZ217522A (en) 1986-09-10 1986-09-10 Dust mask with combined inhalation and exhalation valves

Publications (1)

Publication Number Publication Date
NZ217522A true NZ217522A (en) 1989-01-27

Family

ID=19921777

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ21752286A NZ217522A (en) 1986-09-10 1986-09-10 Dust mask with combined inhalation and exhalation valves

Country Status (1)

Country Link
NZ (1) NZ217522A (en)

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