CPC B64C2700/6284
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CPC B64C2700/6284 was a patent class. (Can't find it on espacenet or USPTO right now; for xyz.[1][2])
References
- ↑ CPC B64C2700/6284 element at Espacenet web site
- ↑ CPC B64C2700/6284 element listed at USPTO
This wiki has 1 patents in category "CPC B64C2700/6284".
Patents in category CPC B64C2700/6284
- Patent DE-1896-98109 (English title: Changeover device for flight devices, possibly a helicopter capable of landing on earth or water, Inventors: Dr. Bernhard Reinhard Beenen, Filing date: 1896-05-05)
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