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TRANSPARENT ACOUSTIC DAMPER

  • US 20140353078A1
  • Filed: 10/28/2013
  • Published: 12/04/2014
  • Est. Priority Date: 05/31/2013
  • Status: Abandoned Application
First Claim
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1. An acoustic tuning film on a sounder, substantially made of a transparent film sheet, characterized in that:

  • the film sheet has an irregular shape, one or more than one fine aperture, and an adhesive region.

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