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Solar powered ventilating fan for welding helmets

  • US D308,416 S
  • Filed: 08/21/1987
  • Issued: 06/05/1990
  • Est. Priority Date: 08/21/1987
  • Status: Expired due to Term
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1. The ornamental design for a solar powered ventilating fan for welding helmets, as shown and described.

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