FILTERING FACE-PIECE RESPIRATOR HAVING FOAM SHAPING LAYER | Patent Publication Number 20120017911

US 20120017911 A1
Patent Number-
Application Number12843276
Filled DateJul 26, 2010
Priority DateJul 26, 2010
Publication DateJan 26, 2012
Original Assignee3m Company
Current Assignee3m Company
Inventor/ApplicantsSeung-Joo Lee
Jin-Ho Lee
Joo-Youn Kim
Dong-Il Choi
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