Hearing protector

Assignee

• 3M

Inventors

• Douglas D. Fletcher (26 patents)
• Lindsay J. Adams (3 patents)
• Brenda M. Bonney (7 patents)
• Nicolas A. Echeverri (41 patents)
• Garin G. Ipsen (3 patents)
• Oscar Hemberg (42 patents)
• Eric O. Hemberg (27 patents)

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