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US Propeller USP3 in a circle?

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  • US Propeller USP3 in a circle?

    I have a US Propeller inc. prop, 22008, serial # UU166 and there is also stamped on it USP3 which is in a circle. Does anyone know what that means? Thank you.

  • #2
    No, but I recognize that design number as a commonly found drone propeller.
    Dave

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    • #3
      USP3 in a circle?

      Thanks for the information. That is helpful. I still can't find what the USP3 in a circle means. I am trying my best but having trouble doing so on the net. Thanks again.

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      • #4
        Perhaps a quality control inspector stamp?

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        • #5
          USP3 in a circle?

          Good idea! Thanks, I am still looking. Have a great day.

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