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DYNAMOELECTRIC MACHINE

  • US 3,758,799 A
  • Filed: 01/06/1972
  • Issued: 09/11/1973
  • Est. Priority Date: 01/06/1972
  • Status: Expired due to Term
First Claim
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2. The dynamoelectric machine of claim 1 wherein the particulate material is comprised of granular refractory material having an A.F.S. grain fineness number greater than 45.

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