CA615481A - Mask for breathing apparatus - Google Patents

Mask for breathing apparatus

Info

Publication number
CA615481A
CA615481A CA615481A CA615481DA CA615481A CA 615481 A CA615481 A CA 615481A CA 615481 A CA615481 A CA 615481A CA 615481D A CA615481D A CA 615481DA CA 615481 A CA615481 A CA 615481A
Authority
CA
Canada
Prior art keywords
mask
breathing apparatus
breathing
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
CA615481A
Inventor
W. Austin Harry
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.)
MSA Safety Inc
Original Assignee
Mine Safety Appliances Co
Publication date
Application granted granted Critical
Publication of CA615481A publication Critical patent/CA615481A/en
Expired legal-status Critical Current

Links

CA615481A Mask for breathing apparatus Expired CA615481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA615481T

Publications (1)

Publication Number Publication Date
CA615481A true CA615481A (en) 1961-02-28

Family

ID=35857787

Family Applications (1)

Application Number Title Priority Date Filing Date
CA615481A Expired CA615481A (en) Mask for breathing apparatus

Country Status (1)

Country Link
CA (1) CA615481A (en)

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