CA 244/9

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CA 244/9 is a Canadian patent category for heavier-than-air craft sustained in the air by "Airplane and Cylindrical Rotor" mechanisms.[1][2][3]

First patent in CIPO search dated 1933.

References

This wiki has 0 patents in category "CA 244/9".



Enclosing categories CA 244/3
Subcategories
Keywords Airplane, Sustentation, Airfoil, Propulsion, Hybrid, USPC 244/10
Start year
End year