View source for CPC B64C3/187

'''CPC B64C3/187''' is for ribs on an airplane e.g. for attaching wings to [[fuselage]].<ref name=esp>{{espCPCcat|B64C3/187}}</ref> <ref name=pto>{{ptoCPCcat|B64C|3/187}}</ref>

Patent classification tree:
* [[CPC B64C]] Aeroplanes and helicopters
** Aircraft structures or fairings  (boundary-layer controls B64C21/00) 
** [[CPC B64C3/00]] Wings  (stabilising surfaces B64C5/00; ornithopter wings B64C33/02)
*** [[CPC B64C3/18]] Spars; Ribs; Stringers  (attaching wing unit to fuselage B64C1/26)
**** [[CPC B64C3/185]] Spars
**** [[CPC B64C3/187]] Ribs
{{References}}
{{Standard techtype reports}}
{{Techtype
|Enclosing categories=CPC B64C3/18
|Keywords=frame; structure
}}