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Hearing protector
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Patent number D766520
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Issue date Sep 13, 2016
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3M Innovative Properties Company
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Douglas D. Fletcher
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D29 - Equipment for safety, protection, and rescue
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Hearing protector
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Patent number D764717
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Issue date Aug 23, 2016
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3M Innovative Properties Company
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Douglas D. Fletcher
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D29 - Equipment for safety, protection, and rescue
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Hearing protector headband
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Patent number D763518
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Issue date Aug 9, 2016
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3M Innovative Properties Company
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Douglas D. Fletcher
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D29 - Equipment for safety, protection, and rescue
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Hearing protector
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Patent number D753884
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Issue date Apr 12, 2016
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3M Innovative Properties Company
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Brenda M. Bonney
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D29 - Equipment for safety, protection, and rescue
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Hearing protector
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Patent number D752816
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Issue date Mar 29, 2016
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3M Innovative Properties Company
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Douglas D. Fletcher
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D29 - Equipment for safety, protection, and rescue
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Hearing protector
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Patent number D747557
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Issue date Jan 12, 2016
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3M Innovative Properties Company
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Brenda M. Bonney
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D29 - Equipment for safety, protection, and rescue
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Hearing protector
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Patent number D736475
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Issue date Aug 11, 2015
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3M Innovative Properties Company
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Douglas D. Fletcher
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D29 - Equipment for safety, protection, and rescue