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Inventor
MURRAY ALICE C
US
2 patents
Patents
2 patents
US4807619A
Feb 28, 1989
Resilient shape-retaining fibrous filtration face mask
MINNESOTA MINING & MFG
316 citations
96
US4884684A
Dec 5, 1989
Containment device for biological materials
MINNESOTA MINING & MFG
23 citations
76