Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
May 1, 2018
Patent Application Number
15329836
Date Filed
September 7, 2015
Patent Citations Received
Patent Primary Examiner
Patent abstract
A drum, including: a shell; at least one head; and a vibration damping portion including at least one of (a) an outer-surface facing surface which is disposed in substantially parallel with and is closely opposed to an outer surface of an outer peripheral portion of the at least one head without contacting the outer surface and (b) an inner-surface facing surface which is disposed in substantially parallel with and is closely opposed to an inner surface of the outer peripheral portion of the at least one head without contacting the inner surface.
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