CPC B63H1/20

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CPC B63H1/20 is a patent class for marine propeller hubs.[1][2]

Patent subclass tree
  • B63H1/00 Propulsive elements directly acting on water (jet propulsion B63H11/00)
    • B63H1/02 of rotary type
      • B63H1/12 with rotation axis substantially in propulsive direction
        • B63H1/14 Propellers (pitch changing B63H3/00)
          • B63H1/20 Hubs; Blade connections
            • B63H1/22 the blades being foldable
              • B63H1/24 automatically foldable or unfoldable


This wiki has 11 patents in category "CPC B63H1/20".

Patents in category CPC B63H1/20

Enclosing categories CPC B63H1/00, CPC B63H1/14
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