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Alumina fiber aggregate and its production method

  • US 6,746,979 B2
  • Filed: 03/20/2003
  • Issued: 06/08/2004
  • Est. Priority Date: 07/23/2001
  • Status: Expired due to Term
First Claim
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1. An alumina fiber aggregate comprising alumina short fibers whose average diameter is 4.0 to 10.0 μ

  • m and smallest diameter is not less than 3.0 μ

    m.

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