CPC B64C39/005

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CPC B64C39/005 is a technological category in the Cooperative Patent Classification (CPC) system covering patents related to Aircraft not elsewhere classified which have "wings, paddle wheels, bladed wheels, moving or rotating in relation to the fuselage about a horizontal transversal axis".[1][2]

De facto this category seems to have a lot of leftovers, long complicated patents that are hard to classify, and in which it's hard to find the unique inventive element.



This wiki has 145 patents in category "CPC B64C39/005".

Patents in category CPC B64C39/005

Enclosing categories CPC B64C39/00
Keywords n.e.c., leftovers
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