USPC 244/74

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U.S. patent classification subclass 244/74 is for patents related to explosive jets: The arrangements and use of devices in which explosions produce a jet of air or other fluid.[1][2]

Related subclasses:[3]

References

Patents in category USPC 244/74

Enclosing categories USPC 244/73
Subcategories
Keywords Propellers, jets
Start year
End year