CPC B64C11/48

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This is a category of patents on Units of two or more coaxial propellers.[1][2] Coaxial means they are on a common axle.

Some churns are in this category, and we judge these generally as NOT relevant to aero.

The relevant class tree:

  • CPC B64C11/00: Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft

References

This wiki has 140 patents in category "CPC B64C11/48". Other techtypes related to CPC B64C11/48: CPC F03D1/025

Patents in category CPC B64C11/48

Enclosing categories CPC B64C11/46
Subcategories
Keywords CPC F03D1/025, Propellers, USPC 416/124, USPC 416/127
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