CA411231A - Respirator - Google Patents

Respirator

Info

Publication number
CA411231A
CA411231A CA411231A CA411231DA CA411231A CA 411231 A CA411231 A CA 411231A CA 411231 A CA411231 A CA 411231A CA 411231D A CA411231D A CA 411231DA CA 411231 A CA411231 A CA 411231A
Authority
CA
Canada
Prior art keywords
respirator
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
CA411231A
Other languages
French (fr)
Inventor
H. Lehmberg 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.)
American Optical Corp
Original Assignee
American Optical Corp
Publication date
Application granted granted Critical
Publication of CA411231A publication Critical patent/CA411231A/en
Expired legal-status Critical Current

Links

CA411231A Respirator Expired CA411231A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA411231T

Publications (1)

Publication Number Publication Date
CA411231A true CA411231A (en) 1943-03-23

Family

ID=35422533

Family Applications (1)

Application Number Title Priority Date Filing Date
CA411231A Expired CA411231A (en) Respirator

Country Status (1)

Country Link
CA (1) CA411231A (en)

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