CPC B64C
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This is a broad category in the Cooperative Patent Classification (CPC) system. B64 has aviation transportation categories, and B64C focuses on airplanes and helicopters.[1][2]
References
- ↑ B64C elements listed at Espacenet
- ↑ B64C elements listed at USPTO
| Enclosing categories | CPC B64 |
|---|---|
| Subcategories | CPC B64C1/00, CPC B64C3/00, CPC B64C5/00, CPC B64C7/00, CPC B64C9/00, CPC B64C11/00, CPC B64C13/00, CPC B64C15/00, CPC B64C17/00, CPC B64C19/00, CPC B64C21/00, CPC B64C23/00, CPC B64C25/00, CPC B64C27/00, CPC B64C29/00, CPC B64C30/00, CPC B64C31/00, CPC B64C33/00, CPC B64C35/00, CPC B64C37/00, CPC B64C39/00, CPC B64C99/00 |
| Keywords | Aeroplane, Airplane, Helicopter |
| Start year | |
| End year |
