CA291549A - Air mask - Google Patents

Air mask

Info

Publication number
CA291549A
CA291549A CA291549A CA291549DA CA291549A CA 291549 A CA291549 A CA 291549A CA 291549 A CA291549 A CA 291549A CA 291549D A CA291549D A CA 291549DA CA 291549 A CA291549 A CA 291549A
Authority
CA
Canada
Prior art keywords
air mask
mask
air
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
CA291549A
Other languages
French (fr)
Inventor
E. Watters William
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 CA291549A publication Critical patent/CA291549A/en
Expired legal-status Critical Current

Links

CA291549A Air mask Expired CA291549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA291549T

Publications (1)

Publication Number Publication Date
CA291549A true CA291549A (en) 1929-07-23

Family

ID=35228361

Family Applications (1)

Application Number Title Priority Date Filing Date
CA291549A Expired CA291549A (en) Air mask

Country Status (1)

Country Link
CA (1) CA291549A (en)

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