CA789751A - Face mask - Google Patents

Face mask

Info

Publication number
CA789751A
CA789751A CA789751A CA789751DA CA789751A CA 789751 A CA789751 A CA 789751A CA 789751 A CA789751 A CA 789751A CA 789751D A CA789751D A CA 789751DA CA 789751 A CA789751 A CA 789751A
Authority
CA
Canada
Prior art keywords
face mask
mask
face
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
CA789751A
Inventor
Patrick H. Carey, Jr.
J. Barghini Robert
M. Westberg 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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Publication date
Application granted granted Critical
Publication of CA789751A publication Critical patent/CA789751A/en
Expired legal-status Critical Current

Links

CA789751A Face mask Expired CA789751A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA789751T

Publications (1)

Publication Number Publication Date
CA789751A true CA789751A (en) 1968-07-16

Family

ID=36253719

Family Applications (1)

Application Number Title Priority Date Filing Date
CA789751A Expired CA789751A (en) Face mask

Country Status (1)

Country Link
CA (1) CA789751A (en)

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