CPC B64C11/48

From Inventing aviation
Revision as of 14:55, 3 December 2023 by Econterms (talk | contribs) (this category include non-aero devices such as churns)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

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 135 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
Start year
End year