CPC B64C2700/6274

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This category in the CPC patent technology category system has been deleted.[1][2] "Influencing airflow over aircraft surfaces by other means, e.g. propellers, rotors, air jets."[3][4]

This category was deleted around May 1, 2017: [2]

It was in this category tree:[3]

References

  1. ↑ https://www.uspto.gov/web/patents/classification/cpc/html/deleted-symbols-list.html
  2. ↑ https://www.uspto.gov/web/patents/classification/cpc/pdf/CPCNOC421RP0348various.pdf
  3. ↑ 3.0 3.1 https://www.uspto.gov/web/patents/classification/cpc/compilations/cpc-compilation-201705-by-project.pdf
  4. ↑ [1]
Enclosing categories CPC B64C2700/00, CPC B64C2700/627
Subcategories
Keywords IdT classification
Start year
End year


This wiki has 168 patents in category "CPC B64C2700/6274". Other techtypes related to CPC B64C2700/6274: CPC B64C23/005

Patents in category CPC B64C2700/6274


References


Other techtypes related to CPC B64C2700/6274: CPC B64C23/005

Patents in category CPC B64C2700/6274

Enclosing categories CPC B64C2700/00
Subcategories
Keywords CPC B64C23/005
Start year
End year
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