CA397185A - Gas breathing device - Google Patents

Gas breathing device

Info

Publication number
CA397185A
CA397185A CA397185A CA397185DA CA397185A CA 397185 A CA397185 A CA 397185A CA 397185 A CA397185 A CA 397185A CA 397185D A CA397185D A CA 397185DA CA 397185 A CA397185 A CA 397185A
Authority
CA
Canada
Prior art keywords
breathing device
gas breathing
gas
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
CA397185A
Other languages
French (fr)
Inventor
M. Boothby Walter
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA397185A publication Critical patent/CA397185A/en
Expired legal-status Critical Current

Links

CA397185A Gas breathing device Expired CA397185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA397185T

Publications (1)

Publication Number Publication Date
CA397185A true CA397185A (en) 1941-06-10

Family

ID=35407707

Family Applications (1)

Application Number Title Priority Date Filing Date
CA397185A Expired CA397185A (en) Gas breathing device

Country Status (1)

Country Link
CA (1) CA397185A (en)

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