CA 115/31

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CA 115/31 is a Canadian patent category for marine helical screws propellers.[1][2][3]

References

  1. ↑ Subclasses of patent class CA 115
  2. ↑ Definition of subclass CA 115/31
  3. ↑ List of Canadian patents in subclass CA 115/31 filed before 1925

This wiki has 0 patents in category "CA 115/31".



Enclosing categories CA 115
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