CPC B65H9/166
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CPC B65H9/166 is a patent class for xyz.[1][2]
References
This wiki has 1 patents in category "CPC B65H9/166".
Patents in category CPC B65H9/166
- Patent FR-1920-498979 (English title: Improvements in the brakes for airplanes, Inventors: Thomas Sopwith)
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