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Corrugated diaphragm

  • US 20030183888A1
  • Filed: 03/28/2002
  • Published: 10/02/2003
  • Est. Priority Date: 03/28/2002
  • Status: Abandoned Application
First Claim
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1. A diaphragm comprising:

  • a sheet of material formed on a substrate having a hole, the sheet of material covering the hole and including one or more corrugations that are substantially free of defects.

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