CA442072A - Breathing apparatus - Google Patents

Breathing apparatus

Info

Publication number
CA442072A
CA442072A CA442072A CA442072DA CA442072A CA 442072 A CA442072 A CA 442072A CA 442072 A CA442072 A CA 442072A CA 442072D A CA442072D A CA 442072DA CA 442072 A CA442072 A CA 442072A
Authority
CA
Canada
Prior art keywords
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
CA442072A
Other languages
French (fr)
Inventor
H. Schneider John
P. Yant William
B. Jackson Carey
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 CA442072A publication Critical patent/CA442072A/en
Expired legal-status Critical Current

Links

CA442072A Breathing apparatus Expired CA442072A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA442072T

Publications (1)

Publication Number Publication Date
CA442072A true CA442072A (en) 1947-06-10

Family

ID=35557303

Family Applications (1)

Application Number Title Priority Date Filing Date
CA442072A Expired CA442072A (en) Breathing apparatus

Country Status (1)

Country Link
CA (1) CA442072A (en)

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