CPC B64C2027/8245
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CPC B64C2027/8245 is a patent class for xyz.[1][2]
References
This wiki has 1 patents in category "CPC B64C2027/8245".
Patents in category CPC B64C2027/8245
- Patent DE-1894-85903 (English title: Steerable flying machine with climbing propellers, Inventors: August Boehm, Filing date: 1894-02-27)
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