CPC B64B1/34
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CPC B64B1/34 is a patent class for Arrangements of lifting propellers on semi-rigid lighter-than-air craft.[1][2]
Patent class tree:
- CPC B64B1/00 Lighter-than-air aircraft
- CPC B64B1/06 Rigid airships; Semi-rigid airships (CPC B64B1/58 takes precedence)
- CPC B64B1/24 Arrangement of propulsion plant (CPC B64B1/34 takes precedence)
- CPC B64B1/30 Arrangement of propellers
- CPC B64B1/34 Arrangement of lifting propellers
- CPC B64B1/30 Arrangement of propellers
- CPC B64B1/24 Arrangement of propulsion plant (CPC B64B1/34 takes precedence)
- CPC B64B1/06 Rigid airships; Semi-rigid airships (CPC B64B1/58 takes precedence)
References
- ↑ CPC B64B1/34 element at Espacenet web site
- ↑ CPC B64B1/34 element listed at USPTO
This wiki has 0 patents in category "CPC B64B1/34".
| Enclosing categories | CPC B64B1/30 |
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