CA400794A - Respirator - Google Patents

Respirator

Info

Publication number
CA400794A
CA400794A CA400794A CA400794DA CA400794A CA 400794 A CA400794 A CA 400794A CA 400794 A CA400794 A CA 400794A CA 400794D A CA400794D A CA 400794DA CA 400794 A CA400794 A CA 400794A
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
CA400794A
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 CA400794A publication Critical patent/CA400794A/en
Expired legal-status Critical Current

Links

CA400794A Respirator Expired CA400794A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA400794T

Publications (1)

Publication Number Publication Date
CA400794A true CA400794A (en) 1941-11-18

Family

ID=35411240

Family Applications (1)

Application Number Title Priority Date Filing Date
CA400794A Expired CA400794A (en) Respirator

Country Status (1)

Country Link
CA (1) CA400794A (en)

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